Wholesale Stainless Steel HEXAGON Set Screw DIN913 DIN914 Anti Vibration Grub Screw For Precision Machinery Automotive Equipment
HEXAGON Set Screw also named grub screw, headless internal hex fastener, is our core industrial precision fastener for hidden, compact assembly scenarios. Unlike ordinary bolts, the whole body is full thread, locked via hex key to fix shafts, gears and accessories without nuts, perfectly solve the problem of protruding fasteners affecting equipment operation. Our HEXAGON Set Screw adopts one-time cold forging + precision thread rolling process, uniform tooth profile, high torque resistance, anti-loosening under long-term vibration, widely matched with automation machinery, new energy vehicles, robotics, electronic precision instruments and metal processing equipment.



- Standard Hexagon Socket Drive: Standard inner hex structure, matched with universal Allen wrench, uniform force during tightening, no sliding, improve installation efficiency by 30% vs slotted set screw
- Diversified Tip Options for All Scenarios: Flat point, cone point, cup point, dog point HEXAGON Set Screw optional, different tips provide different clamping force to avoid workpiece scratch or slipping
- Multi Material Selection: 304/316 stainless steel for corrosion-resistant humid environment; Grade 8.8/12.9 alloy steel for high load heavy industry; brass for conductive electronic equipment
- Strict Precision Control: Thread tolerance ±0.02mm, pass salt spray test 200-500h, surface black oxide / zinc plating / passivation optional, effectively prevent rust and oxidation
- Full DIN Standard Compliance: All HEXAGON Set Screw follow DIN913, DIN914, DIN915, DIN916 international standards, interchangeable with imported fasteners, no assembly mismatch risk
- Customization Support: Custom thread size M1.6-M24, length, surface treatment, tip shape, packaging according to customer drawings
| Item | Specification |
|---|---|
| Product Name | HEXAGON Set Screw / Grub Screw |
| Executive Standard | DIN913, DIN914, DIN915, DIN916, ISO4026-4029 |
| Thread Size | M1.6, M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M16, M20, M24 |
| Length Range | 2mm – 100mm |
| Available Tip Types | Flat Point, Cone Point, Cup Point, Dog Point, Oval Point |
| Raw Material | 304 Stainless Steel, 316 Stainless Steel, Grade 8.8 Carbon Steel, Grade12.9 Alloy Steel, Brass |
| Surface Treatment | Natural, Zinc Plating, Black Oxide, Passivation, Nickel Plating |
| Tolerance | Thread ±0.02mm, Hex Socket ±0.01mm |
| Salt Spray Resistance | Stainless steel ≥500h, Carbon steel ≥200h |
| MOQ | 1000pcs, small trial order acceptable |
Our high-performance HEXAGON Set Screw covers mainstream industrial manufacturing fields, solve hidden fastening pain points for B-end manufacturers:
- Precision Automation Equipment: Fix motor shafts, conveyor gears, sensor brackets, compact space without protruding fasteners
- New Energy Automotive: Chassis assembly, interior positioning parts, battery module fixing, anti-vibration long service life
- Robot Joint Manufacturing: High-torque locking structure, repeated rotation without loosening, stable precision operation
- Electronic & Instrument Equipment: Small instrument shell positioning, conductive brass HEXAGON Set Screw for circuit fixing
- General Mechanical Processing: Lathe, milling machine, mold accessories, transmission wheel locking
We have long-term supplied bulk HEXAGON Set Screw to 30+ machinery manufacturers in Europe, Southeast Asia and North America, provide stable standardized parts + customized drawing solutions, reduce customer procurement cost by 15% and lower after-sales loose failure rate.

- Ordinary fasteners easy to loosen under long vibration → Our HEXAGON Set Screw full thread + high-hardness tip tightly lock workpieces, anti-loosening design for continuous operation equipment
- Non-standard equipment cannot match off-the-shelf screws → Support full-size customization of HEXAGON Set Screw, process according to customer drawings
- Humid workshop screws easy to rust → 316 stainless steel & multi anti-rust surface treatment options, long service cycle
- High import fastener cost, long delivery cycle → Direct factory wholesale, no middleman markup, 7-15 days fast production delivery
- Stable assembly quality, reduce equipment maintenance downtime
- One-stop procurement of standard & custom fasteners, simplify supplier management
- Strict factory inspection, 100% thread size & hardness test before delivery, reduce defective rate
- Professional technical team provides fastener matching suggestion free of charge

We are a professional fastener manufacturer with 12 years production experience, fully automated cold forging, thread rolling, surface treatment production lines, annual output of HEXAGON Set Screw over 50 million pieces.
- Complete testing laboratory: Hardness tester, salt spray test machine, thread precision detector for full inspection
- Support third-party inspection SGS, ISO factory certification, IATF16949 auto-grade material available
- Flexible order policy: Small trial order & large bulk order both supported, customized packaging with customer logo
- Global logistics cooperation: Sea, air, express delivery options, door-to-door delivery service

- Inquiry & Quotation: Send your required size, material, tip type, quantity or engineering drawings to our sales team, reply within 2 working hours
- Sample Service: Free sample of standard HEXAGON Set Screw, customer only bear freight cost
- Production Lead Time: Standard stock items deliver within 3-7 days; customized products 7-15 days
- After-sales Support: If defective products caused by our production, full re-production & free replacement
- Technical Support: Our mechanical engineer team provides fastener selection & assembly technical guidance for free
If you need bulk wholesale standard HEXAGON Set Screw or customized non-standard grub screw for your production line, please fill in the inquiry form below, leave your required specifications, industry and order quantity, we will send detailed quotation, product catalog and factory certificate to you immediately.








