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From standard hex bolts to drawing-based specials — every product family backed by documented applications since 2011.

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Caifu fastener product reference 38 on a white background

High-Speed Rail Brake Disc Fasteners

12-Point Flange Locknut — M16

Non-standard · 10 · M16

High-Speed Rail Brake Disc Fasteners

12-Point Flange Bolt — M16 × 85

Non-standard · 10.9 · M16 × 85; M16 × 105

Caifu fastener product reference 40 on a white background

High-Speed Rail Brake Disc Fasteners

Dowel Pin — Ø28 × H61

Non-standard · per 10.9 · Ø28 × H61

High-Speed Rail Brake Disc Fasteners

DIN 931 Hex Bolt — M14 × 100

DIN 931 · 10.9 · M14 × 100

High-Speed Rail Brake Disc Fasteners

External Six-Lobe Full-Thread Flange Bolt — M14 × 90

Non-standard · 10.9 · M14 × 90

Bring us the drawing, specification or operating problem.

Share the application, quantity, material, grade, finish, drawing and delivery target. We will use those details to frame the next technical conversation.

Catalogue parts. Case-backed supply.

12-Point Flange Locknut — M16

12-Point Flange Bolt — M16 × 85

Dowel Pin — Ø28 × H61

DIN 931 Hex Bolt — M14 × 100

External Six-Lobe Full-Thread Flange Bolt — M14 × 90

Bring us the drawing, specification or operating problem.

Request technical consultation