--- title: "4-40 X 1/2″ Round Head Rasied Flat Head Machine Screws Solid Brass Slotted Drive Qty 100" description: "4-40 X 1/2″ Round Head Rasied Flat Head Machine Screws Solid Brass Slotted Drive Q… — Countersunk & Flat-Head Machine Screws." url: https://engineeringhardware.com/product/4-40-x-1-2-round-head-rasied-flat-head-machine-screws-solid-brass-slotted-drive-qty/ source: Engineering Hardware & Fasteners --- # 4-40 X 1/2″ Round Head Rasied Flat Head Machine Screws Solid Brass Slotted Drive Qty 100 [![4-40 X 1/2″ Round Head Rasied Flat Head Machine Screws Solid Brass Slotted Drive Qty 100](https://img.engineeringhardware.com/4-40-X-1-2-Round-Head-Rasied-Flat-Head-Machine-Screws-Solid-Brass-Slotted-Drive-Qty-100.webp)](https://img.engineeringhardware.com/4-40-X-1-2-Round-Head-Rasied-Flat-Head-Machine-Screws-Solid-Brass-Slotted-Drive-Qty-100.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/4-40-x-1-2-round-head-rasied-flat-head-machine-screws-solid-brass-slotted-drive-qty.md) Model no. **M1.6-M16** | **US$0.12**1,000–9,999 pieces | **US$0.012**10,000–49,999 pieces | **US$0.0012**50,000+ pieces | | --- | --- | --- | MOQ 1,000 pieces · Final price confirmed in your quote - **Head Style:** Round - **Standard:** DIN, GB, ANSI, JIS - **Grade:** 4.8 - **Sizes:** M1.6-M16 - **Head Type:** Hex Head, Flat Head, Csk Head, Round Head - **Packing:** Bulk Packing, Small Box, Plastic Box - **Surface:** Plain, Galvanzied, HDG, Nickel Plated, Ruspert - **Thread:** a Thread Ab Thread Machine Thread Cutting Thread Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%204-40%20X%201%2F2%26%238243%3B%20Round%20Head%20Rasied%20Flat%20Head%20Machine%20Screws%20Solid%20Brass%20Slotted%20Drive%20Qty%20100%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2F4-40-x-1-2-round-head-rasied-flat-head-machine-screws-solid-brass-slotted-drive-qty%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. | M1.6-M16 | | --- | --- | | Groove | Cross | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, GB, ANSI, JIS | | Grade | 4.8 | | Sizes | M1.6-M16 | | Head Type | Hex Head, Flat Head, Csk Head, Round Head | | Packing | Bulk Packing, Small Box, Plastic Box | | Surface | Plain, Galvanzied, HDG, Nickel Plated, Ruspert | | Thread | a Thread Ab Thread Machine Thread Cutting Thread | | Drive | Phi Lips, Square, Torx, Socket, Slotted, Star | | Delivery Time | 10-30 Days | | Stock | 12000 Specifications | | Transport Package | Carton+Pallet | | Specification | M1.6-M16 | | Origin | China | | HS Code | 7318150000 | | Production Capacity | 45000 Ton/Year | | Package Size | 280.00cm * 250.00cm * 160.00cm | | Package Gross Weight | 20.000kg | | Customization | Available | | Material | Stainless Steel | | Type | Mushroom Head | | Shipping Cost | Contact the supplier about freight and estimated delivery time. | | Spec | DIN, ISO, ANSIB, JIS, Drawing, Sample Standard: DIN7985, DIN965, DIN84, DIN963, ISO14583, ISO14581, ISO14579, ISO14584 Head: Raised cheese Hd., Countersunk Hd., Pan Hd., Raised Countersunk Hd., Cap Hd. Recess: Cross Recessed, Hexalobular Diameter : M2 ~ M12 ; #2 ~ 1/2'' Length: 3 ~ 60mm ; 5/32'' ~ 4'' Material : A2, A4, SUS 304, SUS 316 and carbon steel | | Category | [Countersunk & Flat-Head Machine Screws](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) | ## Technical parameters | Name | SS304 SS316 DIN Pan Round Cylinder Flat Head Slotted Screw | | --- | --- | | Head Type | flat head,pan head, hex head, truss head, button head, round head, slice head, oval head and so on | | Size | M1.6-M16 | | Thread Type | machine thread, fine thread, coarse thread, hi-low thread, cutting thread, reverse thread etc. | | Material | carbon steel, stainless steel | | Grade | 201, 304, 316, 410 | | Surface | Plain, Galvanzied, HDG, Nickel Plated, Ruspert coating, power coated and so on | | Standard | GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS etc | | Non-standards | OEM is available, according to drawing or samples | | Samples | Samples are free. | | Package | bulk packing, small box packing, plastic bag packing, plastic box packing or as customers' requirement. | | Payment | TT, L/C | ## Description 4-40 X 1/2″ Round Head Rasied Flat Head Machine Screws Solid Brass Slotted Drive Qty 100 is part of our countersunk & flat-head machine screws range (Screws). ### Key details - **Type:** Mushroom Head - **Standard:** DIN, GB, ANSI, JIS - **Material:** Stainless Steel - **Grade:** 4.8 - **Thread:** a Thread Ab Thread Machine Thread Cutting Thread - **Head Type:** Hex Head, Flat Head, Csk Head, Round Head - **Head Style:** Round - **Groove:** Cross Available configurations include head style, standard, grade, sizes and head type. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 1,000 pieces at US$0.0012 – 0.12 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 4-40 X 1/2″ Round Head Rasied Flat Head Machine Screws Solid Brass Slotted Drive Qty 100? The listed minimum order is 1,000 pieces, at US$0.0012 – 0.12 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$0.12 for 1,000–9,999 pieces; US$0.012 for 10,000–49,999 pieces; US$0.0012 for 50,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of 4-40 X 1/2″ Round Head Rasied Flat Head Machine Screws Solid Brass Slotted Drive Qty 100? Type: Mushroom Head; Standard: DIN, GB, ANSI, JIS; Material: Stainless Steel; Grade: 4.8; Thread: a Thread Ab Thread Machine Thread Cutting Thread; Head Type: Hex Head, Flat Head, Csk Head, Round Head. 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, sizes and head type. 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/) [![DIN965 Flat Countersunk CSK Head Metric Machine Screw](https://img.engineeringhardware.com/DIN965-Flat-Countersunk-CSK-Head-Metric-Machine-Screw.webp)](https://engineeringhardware.com/product/din965-flat-countersunk-csk-head-metric-machine-screw/) Countersunk & Flat-Head Machine Screws ### [DIN965 Flat Countersunk CSK Head Metric Machine Screw](https://engineeringhardware.com/product/din965-flat-countersunk-csk-head-metric-machine-screw/) Countersunk Head · DIN, ANSI, GB, JIS, BSW, GOST **US$0.60 – 12.00**MOQ 1 kilogram [![Carbon Steel Countersunk Head Hexagon Socket Button Head Screw](https://img.engineeringhardware.com/Carbon-Steel-Countersunk-Head-Hexagon-Socket-Button-Head-Screw.webp)](https://engineeringhardware.com/product/carbon-steel-countersunk-head-hexagon-socket-button-head-screw/) Countersunk & Flat-Head Machine Screws ### [Carbon Steel Countersunk Head Hexagon Socket Button Head Screw](https://engineeringhardware.com/product/carbon-steel-countersunk-head-hexagon-socket-button-head-screw/) Countersunk Head · DIN, GB, ANSI, JIS **US$0.024 – 0.0312**MOQ 5,000 pieces [![Premium Hexagon Socket Cup Point Screws for Reliable Fastening](https://img.engineeringhardware.com/Premium-Hexagon-Socket-Cup-Point-Screws-for-Reliable-Fastening.webp)](https://engineeringhardware.com/product/premium-hexagon-socket-cup-point-screws-for-reliable-fastening/) Countersunk & Flat-Head Machine Screws ### [Premium Hexagon Socket Cup Point Screws for Reliable Fastening](https://engineeringhardware.com/product/premium-hexagon-socket-cup-point-screws-for-reliable-fastening/) Countersunk Head Hexagon · DIN, GB, ANSI, BSW, JIS, GOST **US$0.072 – 0.12**MOQ 1,000 pieces [![Precise and Flush Finishing Premium Flat Head Screw Nails](https://img.engineeringhardware.com/Precise-and-Flush-Finishing-Premium-Flat-Head-Screw-Nails.webp)](https://engineeringhardware.com/product/precise-and-flush-finishing-premium-flat-head-screw-nails/) Countersunk & Flat-Head Machine Screws ### [Precise and Flush Finishing Premium Flat Head Screw Nails](https://engineeringhardware.com/product/precise-and-flush-finishing-premium-flat-head-screw-nails/) Screw Nails · ANSI, DIN, GB, ISO, JIS **US$468.00 – 660.00**MOQ 3 tons [![All Size DIN18182 Stainless Steel Dry Wall Screws](https://img.engineeringhardware.com/All-Size-DIN18182-Stainless-Steel-Dry-Wall-Screws.webp)](https://engineeringhardware.com/product/all-size-din18182-stainless-steel-dry-wall-screws/) Countersunk & Flat-Head Machine Screws ### [All Size DIN18182 Stainless Steel Dry Wall Screws](https://engineeringhardware.com/product/all-size-din18182-stainless-steel-dry-wall-screws/) Countersunk Head · DIN, GB, ANSI **US$0.024 – 0.036**MOQ 1,000 pieces [![Wholesale Manufacturer GB12616 Closed End Blind Rivet Countersunk Head Rivets](https://img.engineeringhardware.com/Wholesale-Manufacturer-GB12616-Closed-End-Blind-Rivet-Countersunk-Head-Rivets.webp)](https://engineeringhardware.com/product/wholesale-manufacturer-gb12616-closed-end-blind-rivet-countersunk-head-rivets/) Countersunk & Flat-Head Machine Screws ### [Wholesale Manufacturer GB12616 Closed End Blind Rivet Countersunk Head Rivets](https://engineeringhardware.com/product/wholesale-manufacturer-gb12616-closed-end-blind-rivet-countersunk-head-rivets/) Stainless Steel · ISO **US$36.00**MOQ 1,000 boxes [![Aobo SUS316 Right Version Screw-on Electrical Industrial Cabinet Door Hinge with Countersunk Screw M5](https://img.engineeringhardware.com/Aobo-SUS316-Right-Version-Screw-on-Electrical-Industrial-Cabinet-Door-Hinge-with-Countersunk-Screw-M5.webp)](https://engineeringhardware.com/product/aobo-sus316-right-version-screw-on-electrical-industrial-cabinet-door-hinge-with/) Countersunk & Flat-Head Machine Screws ### [Aobo SUS316 Right Version Screw-on Electrical Industrial Cabinet Door Hinge with Countersunk Screw M5](https://engineeringhardware.com/product/aobo-sus316-right-version-screw-on-electrical-industrial-cabinet-door-hinge-with/) 180°Hinge · ISO14001:2004 ISO9001:2008 RoHS **US$2.76 – 3.24**MOQ 100 pieces [![Custom Slotted Round Head Fully Threaded Machine Screw for Machinery and Equipment](https://img.engineeringhardware.com/Custom-Slotted-Round-Head-Fully-Threaded-Machine-Screw-for-Machinery-and-Equipment.webp)](https://engineeringhardware.com/product/custom-slotted-round-head-fully-threaded-machine-screw-for-machinery-and-equipment/) Countersunk & Flat-Head Machine Screws ### [Custom Slotted Round Head Fully Threaded Machine Screw for Machinery and Equipment](https://engineeringhardware.com/product/custom-slotted-round-head-fully-threaded-machine-screw-for-machinery-and-equipment/) Countersunk Head · DIN, GB, ANSI, BSW, JIS, GOST **US$0.60 – 1.80**MOQ 50,000 pieces **US$0.0012 – 0.12**MOQ 1,000 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%204-40%20X%201%2F2%26%238243%3B%20Round%20Head%20Rasied%20Flat%20Head%20Machine%20Screws%20Solid%20Brass%20Slotted%20Drive%20Qty%20100%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2F4-40-x-1-2-round-head-rasied-flat-head-machine-screws-solid-brass-slotted-drive-qty%2F)