--- title: "Bsw 304 Stainless Steel Countersunk Head Hexagon Socket Screws British Standard Flat Head Allen Bolts 1/4-205/16-183/8-16" description: "Bsw 304 Stainless Steel Countersunk Head Hexagon Socket Screws British Standard Flat Hea… — Countersunk, Plow & Elevator Bolts." url: https://engineeringhardware.com/product/bsw-304-stainless-steel-countersunk-head-hexagon-socket-screws-british-standard-flat/ source: Engineering Hardware & Fasteners --- # Bsw 304 Stainless Steel Countersunk Head Hexagon Socket Screws British Standard Flat Head Allen Bolts 1/4-205/16-183/8-16 [![Bsw 304 Stainless Steel Countersunk Head Hexagon Socket Screws British Standard Flat Head Allen Bolts 1/4-205/16-183/8-16](https://img.engineeringhardware.com/Bsw-304-Stainless-Steel-Countersunk-Head-Hexagon-Socket-Screws-British-Standard-Flat-Head-Allen-Bolts-1-4-205-16-183-8-16.webp)](https://img.engineeringhardware.com/Bsw-304-Stainless-Steel-Countersunk-Head-Hexagon-Socket-Screws-British-Standard-Flat-Head-Allen-Bolts-1-4-205-16-183-8-16.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Bolts › Countersunk, Plow & Elevator Bolts](https://engineeringhardware.com/fastener-products/bolts/countersunk-plow-elevator-bolts/) Updated 2026-11-03 · [Markdown version](https://engineeringhardware.com/product/bsw-304-stainless-steel-countersunk-head-hexagon-socket-screws-british-standard-flat.md) Model no. **NO** | **US$0.024**10,000–49,999 pieces | **US$0.012**50,000+ pieces | | --- | --- | MOQ 10,000 pieces · Final price confirmed in your quote - **Material:** Carbon Steel - **Head Style:** Hexagonal - **Standard:** DIN - **Grade:** A2-70/A2-80/A4-70/A4-80 - **Finish:** Hot Galvanizing - **Head Type:** Round - **Surface Treatment:** Passivated - **Thread:** Full/Half 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%20Bsw%20304%20Stainless%20Steel%20Countersunk%20Head%20Hexagon%20Socket%20Screws%20British%20Standard%20Flat%20Head%20Allen%20Bolts%201%2F4-205%2F16-183%2F8-16%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fbsw-304-stainless-steel-countersunk-head-hexagon-socket-screws-british-standard-flat%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 | Material | Carbon Steel | | --- | --- | | Type | Hexagon Head | | Connection | Common Bolt | | Model NO. | NO | | Head Style | Hexagonal | | Standard | DIN | | Grade | A2-70/A2-80/A4-70/A4-80 | | Application | Machinery, Chemical Industry, Environmental, Building, Industry | | Finish | Hot Galvanizing | | Head Type | Round | | Place of Origin | Guangdong,China | | Range | M3 Tom30 | | Surface Treatment | Passivated | | Thread | Full/Half Thread | | Product Name | Socket Countersunk Screw | | Model Number | DIN271 | | Certificate | ISO9001:2015 | | Transport Package | Box + Carton | | Specification | M3-M48 | | Origin | China | | HS Code | 7318151001 | | Production Capacity | 3000000pieces /Year | | Measurement | INCH, Metric | | Size | M3-M30 | | length | 10mm-200mm | | Head | flat head | | Slot type | Hexagon | | Shipment | 2-30days | | Package | carton+pallet | | Stainless Steel | SS201, SS304, SS316; Carbon Steel: Gr A2; Aluminum | | Busy season | 15-30days, Slack seaon: 10-20days | | Category | [Countersunk, Plow & Elevator Bolts](https://engineeringhardware.com/fastener-products/bolts/countersunk-plow-elevator-bolts/) | ## Technical parameters | Products name | Bolts, nuts, washers, wrenches, pins, threaded rods/bars, studs, rivets, anchors, stamping parts, accessory parts | | --- | --- | | Standard | DIN, ASTM/ANSI, JIS, EN, ISO, AS, GB | | Material | Stainless Steel: SS201, SS304, SS316; Carbon Steel: Gr A2; Aluminum | | Finishing | passivated | | Production Process | Cold Froging, Machining and CNC, Stamping, Welding | | Customized Products Lead time | Busy season: 15-30days, Slack seaon: 10-20days | | Stock Products | Stainless steel: DIN933, DIN603, DIN912, DIN6923, DIN934, DIN125, DIN127, DIN7504K | | Free Sample For Stock Fastener, Charge For Customization. | | ## Description Bsw 304 Stainless Steel Countersunk Head Hexagon Socket Screws British Standard Flat Head Allen Bolts 1/4-205/16-183/8-16 is part of our countersunk, plow & elevator bolts range (Bolts). ### Key details - **Type:** Hexagon Head - **Standard:** DIN - **Material:** Carbon Steel - **Grade:** A2-70/A2-80/A4-70/A4-80 - **Size:** M3-M30 - **Thread:** Full/Half Thread - **length:** 10mm-200mm - **Head Type:** Round Available configurations include material, head style, standard, grade and finish. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 10,000 pieces at US$0.012 – 0.024 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 Bsw 304 Stainless Steel Countersunk Head Hexagon Socket Screws British Standard Flat Head Allen Bolts 1/4-205/16-183/8-16? The listed minimum order is 10,000 pieces, at US$0.012 – 0.024 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$0.024 for 10,000–49,999 pieces; US$0.012 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 Bsw 304 Stainless Steel Countersunk Head Hexagon Socket Screws British Standard Flat Head Allen Bolts 1/4-205/16-183/8-16? Type: Hexagon Head; Standard: DIN; Material: Carbon Steel; Grade: A2-70/A2-80/A4-70/A4-80; Size: M3-M30; Thread: Full/Half Thread. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include material, head style, standard, grade and finish. 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, plow & elevator bolts are available? The Countersunk, Plow & Elevator Bolts category lists 533 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/bolts/countersunk-plow-elevator-bolts/](https://engineeringhardware.com/fastener-products/bolts/countersunk-plow-elevator-bolts/) 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, Plow & Elevator Bolts →](https://engineeringhardware.com/fastener-products/bolts/countersunk-plow-elevator-bolts/) [![Premium Industrial Slotted Countersunk Machine Bolts for Heavy-Duty Use](https://img.engineeringhardware.com/Premium-Industrial-Slotted-Countersunk-Machine-Bolts-for-Heavy-Duty-Use.webp)](https://engineeringhardware.com/product/premium-industrial-slotted-countersunk-machine-bolts-for-heavy-duty-use/) Countersunk, Plow & Elevator Bolts ### [Premium Industrial Slotted Countersunk Machine Bolts for Heavy-Duty Use](https://engineeringhardware.com/product/premium-industrial-slotted-countersunk-machine-bolts-for-heavy-duty-use/) Countersunk Head · DIN, ANSI, GB, JIS, BSW, GOST, Customized **US$0.066 – 1.20**MOQ 50,000 pieces [![Countersunk Head Allen Screw DIN7991 Stainless Steel Bolt 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GOST, BSW **US$0.012**MOQ 100 pieces [![All Size DIN7991/ISO10642/GB70.3 Stainless Steel 316 Hexagon Socket Countersunk Head Cap Bolts](https://img.engineeringhardware.com/All-Size-DIN7991-ISO10642-GB70-3-Stainless-Steel-316-Hexagon-Socket-Countersunk-Head-Cap-Bolts.webp)](https://engineeringhardware.com/product/all-size-din7991-iso10642-gb70-3-stainless-steel-316-hexagon-socket-countersunk-head/) Countersunk, Plow & Elevator Bolts ### [All Size DIN7991/ISO10642/GB70.3 Stainless Steel 316 Hexagon Socket Countersunk Head Cap Bolts](https://engineeringhardware.com/product/all-size-din7991-iso10642-gb70-3-stainless-steel-316-hexagon-socket-countersunk-head/) Hexagon Head · DIN, GB, ANSI **US$0.024 – 0.036**MOQ 1,000 pieces [![ISO 10642 Countersunk Head Round Head Bolt Gr10.9 M36X485](https://img.engineeringhardware.com/ISO-10642-Countersunk-Head-Round-Head-Bolt-Gr10-9-M36X485.webp)](https://engineeringhardware.com/product/iso-10642-countersunk-head-round-head-bolt-gr10-9-m36x485/) Countersunk, Plow & Elevator Bolts ### [ISO 10642 Countersunk Head Round Head Bolt Gr10.9 M36X485](https://engineeringhardware.com/product/iso-10642-countersunk-head-round-head-bolt-gr10-9-m36x485/) Countersunk Head · DIN, ANSI, GB, JIS, BSW, GOST, ISO10642 **US$1.20**MOQ 1,000 pieces **US$0.012 – 0.024**MOQ 10,000 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Bsw%20304%20Stainless%20Steel%20Countersunk%20Head%20Hexagon%20Socket%20Screws%20British%20Standard%20Flat%20Head%20Allen%20Bolts%201%2F4-205%2F16-183%2F8-16%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fbsw-304-stainless-steel-countersunk-head-hexagon-socket-screws-british-standard-flat%2F)