--- title: "Socket Countersunk Screws Flat Head Socket Screws for CNC Machines" description: "Socket Countersunk Screws Flat Head Socket Screws for CNC Machines — Countersunk & Flat-Head Machine Screws. MOQ 5,000 pieces, US$0.072 – 0.096." url: https://engineeringhardware.com/product/socket-countersunk-screws-flat-head-socket-screws-for-cnc-machines/ source: Engineering Hardware & Fasteners --- # Socket Countersunk Screws Flat Head Socket Screws for CNC Machines [![Socket Countersunk Screws Flat Head Socket Screws for CNC Machines](https://img.engineeringhardware.com/Socket-Countersunk-Screws-Flat-Head-Socket-Screws-for-CNC-Machines.webp)](https://img.engineeringhardware.com/Socket-Countersunk-Screws-Flat-Head-Socket-Screws-for-CNC-Machines.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Screws › Countersunk & Flat-Head Machine Screws](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/socket-countersunk-screws-flat-head-socket-screws-for-cnc-machines.md) Model no. **CC-918A** | **US$0.096**5,000–9,999 pieces | **US$0.084**10,000–99,999 pieces | **US$0.072**100,000+ pieces | | --- | --- | --- | MOQ 5,000 pieces · Final price confirmed in your quote - **Head Style:** Round - **Standard:** DIN, GB, ANSI, JIS - **Grade:** 8.8 - **Available Material:** Carbon Steel - **Screw Diameter:** 4 mm - **Screw Length:** 60 mm - **Thread Length:** 57 mm - **Package Size:** 27.00cm * 20.00cm * 16.00cm Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Socket%20Countersunk%20Screws%20Flat%20Head%20Socket%20Screws%20for%20CNC%20Machines%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fsocket-countersunk-screws-flat-head-socket-screws-for-cnc-machines%2F) Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order. ## Specifications | Model NO. | CC-918A | | --- | --- | | Groove | Hexagon | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, GB, ANSI, JIS | | Grade | 8.8 | | Available Material | Carbon Steel | | Screw Diameter | 4 mm | | Management System | GB/T19001-2016/ISO9001:2015 | | Screw Length | 60 mm | | Thread Length | 57 mm | | Transport Package | General Export Packaging or as Required | | Specification | M4 | | Origin | China | | HS Code | 7318150000 | | Production Capacity | 800 Tons / Month | | Package Size | 27.00cm * 20.00cm * 16.00cm | | Package Gross Weight | 15.000kg | | Customization | Available | | Material | Carbon Steel | | Type | Countersunk Head | | Shipping Cost | Contact the supplier about freight and estimated delivery time. | | Machinery and Equipment Manufacturing | The most common application. Used extensively in the assembly of jigs, fixtures, molds, CNC machines, robotic arms, and other industrial equipment where high strength and a smooth surface are paramount. | | Automotive and Aerospace | Used in engines, transmissions, braking systems, and interior panels. Their high strength-to-weight ratio and reliability under vibration are critical here. Often meet specific industry standards (e.g., ASTM, ISO). | | Precision Instruments and Electronics | Used in the assembly of devices where space is limited and a clean, flush finish is necessary. | | DIY and General Fabrication | Popular in metalworking, woodworking (for jigs and fixtures), and bicycle maintenance for their strength and ease of use with a hex key. | | Consumer Goods | Found in furniture assembly (especially high-end flat-pack), appliances, and anywhere a sleek, hidden fastener is desired. | | Packaging | boxes, cartons or plastic bags, or according to customer needs. | | Category | [Countersunk & Flat-Head Machine Screws](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) | ## Technical parameters | Application Scope | | | --- | --- | | These screws are ubiquitous in precision industries and applications where reliability, strength, and a clean finish are required. | | | Machinery and Equipment Manufacturing: | The most common application. Used extensively in the assembly of jigs, fixtures, molds, CNC machines, robotic arms, and other industrial equipment where high strength and a smooth surface are paramount. | | Automotive and Aerospace: | Used in engines, transmissions, braking systems, and interior panels. Their high strength-to-weight ratio and reliability under vibration are critical here. Often meet specific industry standards (e.g., ASTM, ISO). | | Precision Instruments and Electronics: | Used in the assembly of devices where space is limited and a clean, flush finish is necessary. | | DIY and General Fabrication: | Popular in metalworking, woodworking (for jigs and fixtures), and bicycle maintenance for their strength and ease of use with a hex key. | | Consumer Goods: | Found in furniture assembly (especially high-end flat-pack), appliances, and anywhere a sleek, hidden fastener is desired. | | Screw international standard | | | | | | --- | --- | --- | --- | --- | | ITEM | DIN-STANDARD | ISO-STANDARD | GB-STANDARD | DESCRIPTION IN ENGLISH | | 1 | DIN1 | ISO2339 | GB117 | taper pins | | 2 | DIN7 | ISO2338 | GB119-86 | parallel pins | | 3 | DIN84 | ISO1207 | GB65-85 | slotted cheese head screws | | 4 | DIN85 | ISO1580 | GB67-85 | slotted pan head screws | | 5 | DIN93 | | GB854 | tab washers | | 6 | DIN94 | ISO1234 | GB91 | split cotter pins | | 7 | DIN95 | | GB101 | slotted raised csk head wood screws | | 8 | DIN96 | | GB99 | slotted round head wood screws | | 9 | DIN97 | | GB100 | slotted countersunk head wood screws | | 10 | DIN125-A | ISO708 | GB97.1-85 | plain washers | | 11 | DIN125-B | ISO7090 | GB97.2-85 | mediun washers | | 12 | DIN126 | ISO7091 | | plain washers | | 13 | DIN127-A | | GB7244 | spring lock washers,tang ends | | 14 | DIN127-B | | GB93-87 | spring lock washers,square ends | | 15 | DIN128-A | | GB7245-87 | single coil spring lock washers | | 16 | DIN137-A | | | curved spring washers | | 17 | DIN137-B | | GB955 | wave spring washers | | 18 | DIN186 | | GB37-88 | t-head bolts with square neck | | 19 | DIN188 | | | t-head bols with double nip | | 20 | DIN258 | ISO8737 | | taper pins with threaded end | | 21 | DIN261 | | | t-head bolts | | 22 | DIN315AF | | | wing nuts amercia form | | 23 | DIN315DF | | GB62-88 | wing nuts germany form | | 24 | DIN316AF | | | wing screws amercia form | | 25 | DIN317DF | | | wing screws germany form | | 26 | DIN3179 | | | ball knobs | | 27 | DIN404 | | GB832-88 | slotted capstan screws | | 28 | DIN417 | ISO7435 | GB75-85 | soltted set screws with full dog point | | 29 | DIN427 | ISO2342 | GB73-85 | slotted set screws with chamfered end | | 30 | DIN431 | | GB808-88 | pipe nuts with thread | | 31 | DIN432 | | GB856-88 | external tap | | 32 | DIN433 | ISO7092 | GB848-95 | washers for cheese head screws | | 33 | DIN434 | | GB852-88 | square taper washers for u-sections | | 34 | DIN435 | | GB852-88 | square taper washers for i-sections | | 35 | DIN436 | | | square washers | | 36 | DIN438 | ISO7436 | GB74-85 | soltted set with cup point | | 37 | DIN439 | ISO4035 | GB6172-86 | hexagon thin nuts | | 38 | DIN439 | ISO8675 | GB6173-86 | hexagon thin nuts | | 39 | DIN440 | ISO7094 | | rounds washers for wood constructions | | 40 | DIN443 | | | sealing cap, push-in type | | 41 | DIN444 | | GB798-88 | eye bolts form | | 42 | DIN462 | | | internal tab washers | | 43 | DIN463 | | GB855-88 | washers with two taps | | 44 | DIN464 | | GB834-88 | knurled thumb screws with collar | | 45 | DIN465 | | | slotted knurled thumb screws with collar | | 46 | DIN466 | | GB806-88 | knurled thumb nuts with collar | | 47 | DIN467 | | GB807-88 | knurled thumb thin nuts | | 48 | DIN470 | | | sealing washers | | 49 | DIN471 | | GB894.1-86 | retaining rings for shafts(external),circlips | | 50 | DIN472 | | GB893.1-86 | retaining rings for bores(internal),circlips | | 51 | DIN478 | | | square head bolts with collar | | 52 | DIN479 | | | square hea bolts with half dog point | | 53 | DIN480 | | | square head bolts with collar,half dog point and rounded end | | 54 | DIN508 | | | t-slot nutsiso299 | | 55 | DIN525 | | | single end studs | | 56 | DIN529 | | GB799-88 | masonry bolts | | 57 | DIN546 | | GB817-76 | slotted round nuts | | 58 | DIN547 | | GB815-88 | round nuts with drilled holes in one face | | 59 | DIN551 | ISO4776 | GB73-85 | slotted sit screws with flat point | | 60 | DIN553 | ISO7434 | GB71-85 | slotted set screws with cone point | | 61 | DIN555 | ISO4034 | | hexagon nuts | | 62 | DIN557 | | GB39-88 | -csquare nuts | | 63 | DIN558 | ISO4018 | | hexagon screws | | 64 | DIN561 | | | hexagon set screws with full dog point | | 65 | DIN52 | | | bsquare nuts without bevel(pressed nuts) | | 66 | DIN571 | | GB102-86 | hexagon head wood screws (coach screws) | | 67 | DIN580 | ISO3266 | GB825-76 | lifting eye bolts | | 68 | DIN582 | | | lifting eye nuts | | 69 | DIN601 | ISO4016 | | hexagon bolts | | 70 | DIN603 | ISO8677 | GB14-88 | mushroom head square neck bolts (carriage bolts) | | 71 | DIN604 | | | flat countersunk nib bolts | | 72 | DIN605 | | | flat countersunk long square neck bolts | | 73 | DIN607 | | | cup head nib bolts | | 74 | DIN607 | | | flat countersunk shout square neck bolts | | 75 | DIN609 | | | hexagon fitted bolts,long thread | | 76 | DIN610 | | | hexagon fitted bolts,short thread | | 77 | DIN653 | | GB835-88 | knurled thumb screws thin type | | 78 | DIN660 | ISO1051 | GB867-86 | round head rivets | ## Description Socket Countersunk Screws Flat Head Socket Screws for CNC Machines is part of our countersunk & flat-head machine screws range (Screws). ### Key details - **Type:** Countersunk Head - **Standard:** DIN, GB, ANSI, JIS - **Material:** Carbon Steel - **Grade:** 8.8 - **Head Style:** Round - **Groove:** Hexagon - **Connection:** Common Bolt - **Available Material:** Carbon Steel Available configurations include head style, standard, grade, available material and screw diameter. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 5,000 pieces at US$0.072 – 0.096 per piece. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you. ## Frequently asked questions ### What is the minimum order quantity (MOQ) for Socket Countersunk Screws Flat Head Socket Screws for CNC Machines? The listed minimum order is 5,000 pieces, at US$0.072 – 0.096 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size. ### How does the price change with quantity? Volume pricing: US$0.096 for 5,000–9,999 pieces; US$0.084 for 10,000–99,999 pieces; US$0.072 for 100,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of Socket Countersunk Screws Flat Head Socket Screws for CNC Machines? Type: Countersunk Head; Standard: DIN, GB, ANSI, JIS; Material: Carbon Steel; Grade: 8.8; Head Style: Round; Groove: Hexagon. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include head style, standard, grade, available material and screw diameter. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing. ### What is the lead time and how is it shipped? Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment. ### Which other countersunk & flat-head machine screws are available? The Countersunk & Flat-Head Machine Screws category lists 2,424 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) How we work ## Specified, checked and shipped by Engineering Hardware & Fasteners Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing. - DIN, ISO, ASTM, ANSI, JIS and GB standard parts - Non-standard parts made to your drawing - Dimensions, thread gauges and plating checked before packing - Export cartons and pallets, consolidated mixed orders - Samples available for approval before mass production [![Production floor](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor-1024x683.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor.webp) Production floor [![Inspection bench](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench.webp) Inspection bench [![Sorting & packing](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-03-sorting-and-packing-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-03-sorting-and-packing.webp) Sorting & packing [![Parts warehouse](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-04-parts-warehouse-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-04-parts-warehouse.webp) Parts warehouse [![Sample review](https://engineeringhardware.com/wp-content/uploads/2026/11/office-02-office-sample-review-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/office-02-office-sample-review.webp) Sample review [![Sales office](https://engineeringhardware.com/wp-content/uploads/2026/11/office-01-daily-sales-office-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/office-01-daily-sales-office.webp) Sales office [More about us →](https://engineeringhardware.com/about/) · [Request a sample or custom quote →](https://engineeringhardware.com/contact/) ## Request a quote for this product ## Related products [All Countersunk & Flat-Head Machine Screws →](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) [![Custom Special Silver Countersunk Aluminum Flat Round Head Solid Rivets](https://img.engineeringhardware.com/Custom-Special-Silver-Countersunk-Aluminum-Flat-Round-Head-Solid-Rivets.webp)](https://engineeringhardware.com/product/custom-special-silver-countersunk-aluminum-flat-round-head-solid-rivets/) Countersunk & Flat-Head Machine Screws ### [Custom Special Silver Countersunk Aluminum Flat Round Head Solid Rivets](https://engineeringhardware.com/product/custom-special-silver-countersunk-aluminum-flat-round-head-solid-rivets/) Precision Nonstandard Parts(OEM Service) · Aluminum **US$0.036 – 0.36**MOQ 1,000 pieces [![Metric Zinc Plated Quick Heavy Hexagon Insert Stainless Steel M2 M4 M8 M10 M12 Hex Nylon Lock Hex Flange 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Nut](https://img.engineeringhardware.com/Made-in-China-Hexagon-Coupling-Galvanized-Steel-Lock-Slotted-Nut.webp)](https://engineeringhardware.com/product/made-in-china-hexagon-coupling-galvanized-steel-lock-slotted-nut/) Countersunk & Flat-Head Machine Screws ### [Made in China Hexagon Coupling Galvanized Steel Lock Slotted Nut](https://engineeringhardware.com/product/made-in-china-hexagon-coupling-galvanized-steel-lock-slotted-nut/) Countersunk Head · DIN, GB, ANSI, BSW, JIS **US$0.48 – 0.72**MOQ 1,000 pieces **US$0.072 – 0.096**MOQ 5,000 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Socket%20Countersunk%20Screws%20Flat%20Head%20Socket%20Screws%20for%20CNC%20Machines%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fsocket-countersunk-screws-flat-head-socket-screws-for-cnc-machines%2F)