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Ball-and-Cotter Double-Locking Quick-Release Pins
These pins lock in place until you push the button to release the spring-loaded retaining balls, and can also be secured with a cotter pin for longer-term holding. Two-step locking prevents accidental removal. Use these pins in a hole as close to the diameter as possible, but not larger than the diameter at extended ball height.
Pins meet SAE AMS5643 specifications for material. They're made of 17-4 PH stainless steel for strength with some corrosion resistance, and passivated for added protection against corrosion and oxidation. They are magnetic.
For technical drawings and 3-D models, click on a part number.
| Usable Lg. | Dia. Tolerance | Dia. at Extended Ball Ht. | Min. Hardness | Breaking Strength, lbs. | Handle Material | Includes | Specifications Met | Each | |
17-4 PH Stainless Steel  | |||||||||
|---|---|---|---|---|---|---|---|---|---|
1/4" Dia. | |||||||||
| 1" | -0.003" to -0.002" | 0.289" | Rockwell C40 | 9,000 | 300 Series Stainless Steel | 5/64" Dia. Stainless Steel Hairpin Cotter Pin, Split Ring | SAE AMS5643 | 0000000 | 000000 |
| 1 1/2" | -0.003" to -0.002" | 0.289" | Rockwell C40 | 9,000 | 300 Series Stainless Steel | 5/64" Dia. Stainless Steel Hairpin Cotter Pin, Split Ring | SAE AMS5643 | 0000000 | 00000 |
| 2" | -0.003" to -0.002" | 0.289" | Rockwell C40 | 9,000 | 300 Series Stainless Steel | 5/64" Dia. Stainless Steel Hairpin Cotter Pin, Split Ring | SAE AMS5643 | 0000000 | 00000 |
3/8" Dia. | |||||||||
| 1 1/2" | -0.003" to 0.001" | 0.44" | Rockwell C40 | 20,500 | 300 Series Stainless Steel | 5/64" Dia. Stainless Steel Hairpin Cotter Pin, Split Ring | SAE AMS5643 | 0000000 | 00000 |
| 2" | -0.003" to 0.001" | 0.44" | Rockwell C40 | 20,500 | 300 Series Stainless Steel | 5/64" Dia. Stainless Steel Hairpin Cotter Pin, Split Ring | SAE AMS5643 | 0000000 | 00000 |
| 2 1/2" | -0.003" to 0.001" | 0.44" | Rockwell C40 | 20,500 | 300 Series Stainless Steel | 5/64" Dia. Stainless Steel Hairpin Cotter Pin, Split Ring | SAE AMS5643 | 0000000 | 00000 |