Hex Head Bolt with Split Pin Hole at Ende - Durable Fastening Solution
Product Description:
Factory supply hex bolts with drilled hole on screw end. SUS304/316 & carbon steel options, full metric thread. For safety cotter pin locking, machinery, valve, pipeline fixed assembly, custom sizes available.
Hex Head Bolt with Hole at End Size:
| Bolt Size | Thread Dia. | Recommended Hole Dia. | Min Bolt Length |
|---|---|---|---|
| M3 | 3 mm | 1.0 mm | 12 mm |
| M4 | 4 mm | 1.2 mm | 16 mm |
| M5 | 5 mm | 1.5 mm | 20 mm |
| M6 | 6 mm | 1.6 mm | 25 mm |
| M8 | 8 mm | 2.0 mm | 30 mm |
| M10 | 10 mm | 3.0 mm | 35 mm |
| M12 | 12 mm | 3.5 mm | 60 mm |
| M14 | 14 mm | 4.0 mm | 45 mm |
| M16 | 16 mm | 4.5 mm | 50 mm |
Key Advantages:
1.Pre-drilled hole at bolt tail, easy to install cotter pin for anti-loosening
2.Standard hex head, compatible with wrench/socket for fast tightening
3.Multiple material options: stainless steel / high-strength carbon steel
4.Full metric thread, 6g precision tolerance for tight matching
5.Anti-rust surface finish, stable performance in damp & outdoor environment
6.Custom diameter, length and hole size support bulk OEM orders
Application Scenarios:
*Valve body locking assembly
*Pipeline vibration resistance fixing
*Automotive mechanical safety parts
*Construction machinery anti-loose structure
*Marine & outdoor industrial equipment
*Agricultural machinery bolt fastening
Quality Control:
- Raw material composition spectrometer test
- Thread gauge inspection for precision
- Hole diameter full dimensional check
- Salt spray anti-corrosion durability test
- Visual sorting to remove defective bolts
Packaging & Delivery:
- Sample order: Plastic bag + small carton
- Bulk wholesale: 25kg woven bag / export neutral carton
- Pallet loading for sea shipment
- Support custom private label & OEM packing
- Fast lead time for mass production
FAQ: