--- title: "DIN653 Knurled Thumb Screw Large Flat Head Self-Threading" description: "DIN653 Knurled Thumb Screw Large Flat Head Self-Threading — Thumb, Hand & Knurled Screws. MOQ 10,000 pieces, US$0.12 – 0.24." url: https://engineeringhardware.com/product/din653-knurled-thumb-screw-large-flat-head-self-threading/ source: Engineering Hardware & Fasteners --- # DIN653 Knurled Thumb Screw Large Flat Head Self-Threading [![DIN653 Knurled Thumb Screw Large Flat Head Self-Threading](https://img.engineeringhardware.com/DIN653-Knurled-Thumb-Screw-Large-Flat-Head-Self-Threading.webp)](https://img.engineeringhardware.com/DIN653-Knurled-Thumb-Screw-Large-Flat-Head-Self-Threading.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Screws › Thumb, Hand & Knurled Screws](https://engineeringhardware.com/fastener-products/screws/thumb-hand-knurled-screws/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/din653-knurled-thumb-screw-large-flat-head-self-threading.md) Model no. **DIN653** US$0.12 – 0.24 / piece MOQ 10,000 pieces · Final price confirmed in your quote - **Material:** Stainless Steel - **Head Style:** Round - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Grade:** 8.8 - **Package Size:** 100.00cm * 100.00cm * 100.00cm - **Built to Industrial Standards with Robust Materials:** Manufactured in strict compliance with Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20DIN653%20Knurled%20Thumb%20Screw%20Large%20Flat%20Head%20Self-Threading%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fdin653-knurled-thumb-screw-large-flat-head-self-threading%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 | Round Head | | Model NO. | DIN653 | | Groove | Flat | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, GB, ANSI, BSW, JIS, GOST | | Grade | 8.8 | | Delivery | 7-20days | | Pay Term | Tt 30% Deposit | | Certificate | ISO9001 | | Packaging Details | Customization | | Transport Package | Cartonboxes and Pallets | | Specification | 8.8 | | Origin | China | | HS Code | 7318159090 | | Production Capacity | 500ton/Month | | Package Size | 100.00cm * 100.00cm * 100.00cm | | Package Gross Weight | 500.000kg | | Engineered for Effortless Hand-Tightening and Secure Fastening | Our precision-manufactured DIN653 Large Flat Knurled Head Screws provide the ultimate solution for applications requiring frequent adjustment, tool-free assembly, or reliable access in confined spaces. Featuring a | | Built to Industrial Standards with Robust Materials | Manufactured in strict compliance with | | Category | [Thumb, Hand & Knurled Screws](https://engineeringhardware.com/fastener-products/screws/thumb-hand-knurled-screws/) | ## Technical parameters | PARAMETERS | | | --- | --- | | Item | Large Flat Knurled Head Screws | | Spec | M4-M12 | | Material | Stainless Steel, carbon steel,copper | | Grade | 4.8, 8.8, 10.9, 12.9 | | Standard | GB, DIN, UNS,JIS | | Surface Finish | Natural, Black, White-plated zinc, Color zinc, Nickel, Dacromet, Polished, Zinc-nickel alloy, Hot-dip galvanized, etc. | | Delivery Time | 7-20Days | | Package | cartonboxes or PE bag | ## Description DIN653 Knurled Thumb Screw Large Flat Head Self-Threading is part of our thumb, hand & knurled screws range (Screws). ### Key details - **Type:** Round Head - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Material:** Stainless Steel - **Grade:** 8.8 - **Head Style:** Round - **Groove:** Flat - **Connection:** Common Bolt - **Pay Term:** Tt 30% Deposit Available configurations include material, head style, standard, grade and package size. 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$0.12 – 0.24 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 DIN653 Knurled Thumb Screw Large Flat Head Self-Threading? The listed minimum order is 10,000 pieces, at US$0.12 – 0.24 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 DIN653 Knurled Thumb Screw Large Flat Head Self-Threading? Type: Round Head; Standard: DIN, GB, ANSI, BSW, JIS, GOST; Material: Stainless Steel; Grade: 8.8; Head Style: Round; Groove: Flat. 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 package size. 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 thumb, hand & knurled screws are available? The Thumb, Hand & Knurled Screws category lists 712 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/screws/thumb-hand-knurled-screws/](https://engineeringhardware.com/fastener-products/screws/thumb-hand-knurled-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 Thumb, Hand & Knurled Screws →](https://engineeringhardware.com/fastener-products/screws/thumb-hand-knurled-screws/) [![Custom OEM Four-Star Angle Plastic Head Wing Screw Butterfly Screw Hand Screw Supplier](https://img.engineeringhardware.com/Custom-OEM-Four-Star-Angle-Plastic-Head-Wing-Screw-Butterfly-Screw-Hand-Screw-Supplier.webp)](https://engineeringhardware.com/product/custom-oem-four-star-angle-plastic-head-wing-screw-butterfly-screw-hand-screw/) Thumb, Hand & Knurled Screws ### [Custom OEM Four-Star Angle Plastic Head Wing Screw Butterfly Screw Hand Screw Supplier](https://engineeringhardware.com/product/custom-oem-four-star-angle-plastic-head-wing-screw-butterfly-screw-hand-screw/) DME · Any Size **US$0.12**MOQ 500 pieces [![Made in China GB834 Stainless Steel Knurled Thumb Step Screw Brass Knurled Thumb Screw Round Flat Head Knurled Thumb 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