GREX P6/35L 23 Gauge 1-3/8-Inch Length Headless Pins (10,000 per box) GREX 23-Gauge headless pins are designed to use with P635, P645, P645L, P650 and P650L Grex pinner Precision drawn wire guarantees consistent accurate pins Optimized tensile strength for each pin length Durable yet flexible collation minimizes strip fragmentation Fastener measures 1-3/8 inches length