ProLock: pre-prepped/treated nipple threads with special compound Hexhead (14g only) design for building/truing at nipple head, in addition to 4-sided flats at rim protrusion Form-A design assures smooth fit and build Cold forged nipple blank machined to D
| material | aluminum |
| gauge | 14g |
| length | 14mm |
| color | black |
| package | 100/count |
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