Longze Split Cotter Pins | DIN 94 / ISO 1234 / ASME B18.8.1 | Grade 4.8 Zinc Plated & Stainless Steel (SS304 / SS316)
Product Title
Longze Split Cotter Pins | DIN 94 / ISO 1234 / ASME B18.8.1 | Grade 4.8 Zinc Plated & Stainless Steel (SS304 / SS316)
Product Summary
롱제 Split Cotter Pins are manufactured according to DIN 94 그리고 ISO 1234 standards, serving as an essential locking component in automotive, agriculture, machinery, and railway industries. Featuring a
double-leg split design, these Split Cotter Pins provide a secure mechanical lock for clevis pins, castle nuts, and other shaft-mounted components to prevent accidental disassembly.
✔ Positive Locking Security: Once inserted, the legs of the Split Cotter Pins are bent outward to create a permanent mechanical stop that resists vibration.
✔ Ease of Installation: Designed with a smooth bulbous head and standardized leg lengths for quick insertion and manual or tool-assisted bending.
✔ High Ductility: Engineered from premium mild steel or stainless steel to ensure the legs can be bent multiple times without fracturing.
Self-Locking Reliability – Prevents nuts and other fasteners from rotating or vibrating loose on the shaft.
Precision Manufacturing – Accurate diameter control ensures a perfect fit into pre-drilled holes in bolts or clevis pins.
Superior Material Grade – Available in high-quality Carbon Steel and Corrosion-Resistant Stainless Steel.
Universal Compatibility – Fully compliant with Metric and Imperial (ASME) specifications for global industrial use.
Standards: DIN 94 / ISO 1234 / ASME B18.8.1 / JIS B1351
Size Range: Diameter M1.0mm to M16mm | 1/16" to 1/2" Inch sizes
Material: Carbon Steel (Grade 4.8), Stainless Steel (SS304 / SS316), Brass
Leg Types: Square Cut / Bevel Cut / Extended Prong
Finish: Zinc Plated (Clear/Yellow), HDG, Black Oxide, Plain
| 재료 | Grade / Type | Tensile Strength | Ductility (Bending) | Application Environment |
| 탄소강 | Q195 / Grade 4.8 | 350–450 MPa | High (180° Bend) | General Machinery / Indoor |
| 스테인리스 스틸 | SS304 (A2-70) | $\ge 500$ MPa | Medium | Food / Outdoor / Industrial |
| 스테인리스 스틸 | SS316 (A4-80) | $\ge 600$ MPa | Medium | Marine / Chemical / Coastal |
- Dimensions & Global Size Conversion
- Technical Standard: Longze provides high-reliability split cotter pins manufactured to DIN 94, ISO 1234, and ASME B18.8.1 standards. These pins are designed for securing clevis pins, castle nuts, and slotted nuts in automotive, agricultural, and industrial machinery.
American Size (Inch) Nearest Metric Size (d) Nominal Diameter (mm/inch) Max Eye Diameter (mm/inch) Prong Length (Short/Long) 1/16" M1.6 1.58 mm / 0.062" 3.20 mm / 0.125" Standard / Extended 3/32" M2.5 2.38 mm / 0.093" 5.00 mm / 0.197" Standard / Extended 1/8" M3.2 3.18 mm / 0.125" 6.40 mm / 0.250" Standard / Extended 5/32" M4.0 3.96 mm / 0.156" 8.00 mm / 0.315" Standard / Extended 3/16" M5.0 4.76 mm / 0.187" 10.0 mm / 0.394" Standard / Extended 1/4" M6.3 6.35 mm / 0.250" 12.6 mm / 0.496" Standard / Extended 5/16" M8.0 7.94 mm / 0.312" 16.0 mm / 0.630" Standard / Extended 3/8" M10.0 9.53 mm / 0.375" 20.0 mm / 0.787" Standard / Extended
- Surface Treatment
Coating Process Salt Spray 애플리케이션 Zinc Plated Electroplating 72–144h Automotive / Agricultural HDG Molten Zinc 500–800h Heavy Infrastructure 스테인리스 스틸 Passivated 1000+h Marine / Medical / Food 솔직한 Oiled <24h Internal Gearboxes
Automotive: Securing castle nuts on wheel hubs, suspension linkages, and tie rods.
Agriculture: Locking hitch pins and PTO shafts on tractors and implements.
Marine: Corrosion-resistant locking for sailboat rigging and propeller nuts.
Industrial Equipment: Pivot pins for cranes, forklifts, and heavy conveyors.
Installation & Usage Guidelines
Sizing: Select a Split Cotter Pins diameter that is slightly smaller than the hole for easy insertion but provides a snug fit.
Bending: Use pliers to bend the prongs in opposite directions. For safety, one prong should be bent over the nut/bolt head.
Safety Check: Ensure the head of the pin is flush against the hole to prevent rattling or excessive wear.
대사: Split Cotter Pins are intended for one-time use. Repeated bending fatigues the metal and reduces safety.
Quality Control & Logistics
ISO 9001 Certified production processes.
Flexibility Test: Batch testing to ensure the legs can be bent 180° without cracking.
Salt Spray Testing: Verification of coating thickness and corrosion resistance.
Packaging:
25kg Cartons (Export Standard)
Fumigation-Free Pallets
Custom small boxes / plastic bags available
Q: Can I use a Split Cotter Pin twice? A: No. These are "deformable" fasteners. Once bent and straightened, the metal structural integrity is compromised. Always use a new pin for reassembly.
Q: Which leg should I bend? A: Both. Standard practice is to bend the two legs in opposite directions around the nut or shaft to ensure the pin cannot back out.
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