--- title: "Custom Long Hex Socket Clamping Screw" description: "Custom Long Hex Socket Clamping Screw — Socket Head Cap & Allen Screws. Material: Stainless Steel, Grade: 4.8. MOQ 1,000 pieces, US$0.024." url: https://engineeringhardware.com/product/custom-long-hex-socket-clamping-screw/ source: Engineering Hardware & Fasteners --- # Custom Long Hex Socket Clamping Screw [![Custom Long Hex Socket Clamping Screw](https://img.engineeringhardware.com/Custom-Long-Hex-Socket-Clamping-Screw.webp)](https://img.engineeringhardware.com/Custom-Long-Hex-Socket-Clamping-Screw.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Screws › Socket Head Cap & Allen Screws](https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/custom-long-hex-socket-clamping-screw.md) Model no. **KnurlIing Clamp Screws** US$0.024 / piece MOQ 1,000 pieces · Final price confirmed in your quote - **Material:** Stainless Steel - **Head Style:** Round - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Grade:** 4.8 - **Length:** 4.0*M4*64.5mm - **Head Type:** Cup - **Surface Treatment:** Zinc Plated - **Package Size:** 21.00cm * 24.00cm * 14.00cm Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Custom%20Long%20Hex%20Socket%20Clamping%20Screw%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fcustom-long-hex-socket-clamping-screw%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 | Customization | Available | | --- | --- | | Material | Stainless Steel | | Type | Cup | | Model NO. | KnurlIing Clamp Screws | | Groove | Hand Screws | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, GB, ANSI, BSW, JIS, GOST | | Grade | 4.8 | | Length | 4.0*M4*64.5mm | | Application | Furniture, Wood , | | Head Type | Cup | | Feature | Bright(Uncoated) | | Surface Treatment | Zinc Plated | | Transport Package | Plastic Bags, Boxes, Cardboard Boxes, Wooden Palle | | Specification | 4.0*M4*64.5mm | | Origin | Tianjin | | HS Code | 7318140090 | | Production Capacity | 12000ton/Year | | Package Size | 21.00cm * 24.00cm * 14.00cm | | Package Gross Weight | 0.010kg | | Lead Time | 10 days (1 - 3 Pieces) To be negotiated ( > 3 Pieces) | | Carton | 32*24*14cm/24*21*14cm Pallet: 110*100*14cm | | ISO 9001 | 2015, over 10 patents, the national high-tech enterprise | | Category | [Socket Head Cap & Allen Screws](https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/) | ## Technical parameters | Product Name | M4 Carbon Steel Cup Head Hexagon Knurled Clamping Screw Custom Long Hex Socket Knurling Clamped Screw | | --- | --- | | Available Material | Carbon steel | | Specification | 4.0*M4*64.5mm | | Drive Type | Hex socket | | Surface Treatment | (ROHS)Zn-plated | | Manufacture Process | Cold forge heading/Secondary machine/Clamping/Threading/Surface treatment/ (Automatic) Testing/(Automatic) Packing/Shipping | | Sample Availability | Stocks within 7 working days, customized samples will be sent within 10-15 working days after we received your tooling fee | | Lead Time | Usually 10-15 working days and it's based on the order quantities | | Packing Details | Carton: 32*24*14cm/24*21*14cm Pallet: 110*100*14cm Or according to customer's design | | Quality Authentication | ISO 9001:2015, over 10 patents, the national high-tech enterprise | ## Description Custom Long Hex Socket Clamping Screw is part of our socket head cap & allen screws range (Screws). ### Key details - **Type:** Cup - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Material:** Stainless Steel - **Grade:** 4.8 - **Length:** 4.0*M4*64.5mm - **Head Type:** Cup - **Head Style:** Round - **Groove:** Hand Screws Available configurations include material, head style, standard, grade and length. 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$0.024 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 Custom Long Hex Socket Clamping Screw? The listed minimum order is 1,000 pieces, at US$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. ### What are the main specifications of Custom Long Hex Socket Clamping Screw? Type: Cup; Standard: DIN, GB, ANSI, BSW, JIS, GOST; Material: Stainless Steel; Grade: 4.8; Length: 4.0*M4*64.5mm; Head Type: Cup. 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 length. 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 socket head cap & allen screws are available? The Socket Head Cap & Allen Screws category lists 2,042 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/](https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-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 Socket Head Cap & Allen Screws →](https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/) [![Big Size Stainless Steel Hexagon Socket Cap Head Screw DIN912](https://img.engineeringhardware.com/Big-Size-Stainless-Steel-Hexagon-Socket-Cap-Head-Screw-DIN912.webp)](https://engineeringhardware.com/product/big-size-stainless-steel-hexagon-socket-cap-head-screw-din912/) Socket Head Cap & Allen Screws ### [Big Size Stainless Steel Hexagon Socket Cap Head Screw DIN912](https://engineeringhardware.com/product/big-size-stainless-steel-hexagon-socket-cap-head-screw-din912/) Round Head · DIN **US$0.012**MOQ 50 pieces [![DIN7991 Hex Socket M6 Flat Head Cap Head Screw](https://img.engineeringhardware.com/DIN7991-Hex-Socket-M6-Flat-Head-Cap-Head-Screw.webp)](https://engineeringhardware.com/product/din7991-hex-socket-m6-flat-head-cap-head-screw/) Socket 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(A2/A4)](https://engineeringhardware.com/product/stainless-steel-304-316-201-gb-t-70-1-hex-socket-combination-screw-a2-a4/) Socket Cap Screw · GB **US$0.0024 – 0.24**MOQ 1,000 pieces **US$0.024**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%20Custom%20Long%20Hex%20Socket%20Clamping%20Screw%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fcustom-long-hex-socket-clamping-screw%2F)