Precise Retention Knobs Style 1, CAT 40 & 50

• Heat Treated alloy steel hardened to HRC-52-56
• ANSI/AMSE B5.50-1994

Item No. 3900-5485 3900-5486 3900-5491 3900-5528 Thread T.P.I. M16x2.0 M16x2.0 5/8 ~ 11 5/8 ~ 11 Knob Dia. D1 0.591″/15mm 0.591″/15mm 0.591″/15mm 0.591″/15mm Neck Dia. D2 0.394″/10mm 0.394″/10mm 0.394″/10mm 0.394″/10mm Hole Dia. D3 N/A N/A N/A N/A Pilot Dia. D4 0.669″/17mm N/A N/A N/A Diameter D 0.906″/23mm 0.906″/23mm 0.906″/23mm 0.906″/23mm OAL L 2.244″/57mm 2.244″/57mm 2.244″/57mm 2.244″/57mm Shoulder L1 0.984″/25mm 0.984″/25mm 0.984″/25mm 0.984″/25mm Shoulder L2 2.362″/60mm 2.362″/60mm 2.362″/60mm 2.362″/60mm Item No. 3900-5529 3900-5533 3900-5539 3900-5541 Thread T.P.I. 5/8 ~ 11 5/8 ~ 11 M16x2.0 M16x2.0 Knob Dia. D1 0.591″/15mm 0.591″/15mm 0.591″/15mm 0.591″/15mm Neck Dia. D2 0.394″/10mm 0.394″/10mm 0.394″/10mm 0.394″/10mm Hole Dia. D3 0.150″/3.8mm 0.150″/3.8mm 0.150″/3.8mm 0.150″/3.8mm Pilot Dia. D4 N/A N/A 0.669″/17mm N/A Diameter D 0.906″/23mm 0.906″/23mm 0.906″/23mm 0.906″/23mm OAL L 2.244″/57mm 2.244″/57mm 2.244″/57mm 2.244″/57mm Shoulder L1 0.984″/25mm 0.984″/25mm 0.984″/25mm 0.984″/25mm Shoulder L2 2.362″/60mm 2.362″/60mm 2.362″/60mm 2.362″/60mm Item No. 3900-5493 3900-5535 3900-5536 Thread T.P.I. 1~8 1~8 1~8 Knob Dia. D1 0.906″/23mm 0.906″/23mm 0.906″/23mm Neck Dia. D2 0.669″/17mm 0.669″/17mm 0.669″/17mm Hole Dia. D3 N/A N/A 0.451″/11.45mm Pilot Dia. D4 N/A N/A N/A Diameter D 1.496″/38mm 1.496″/38mm 1.496″/38mm OAL L 3.094″/78.6mm 3.094″/78.6mm 3.094″/78.6mm Shoulder L1 1.386″/35.2mm 1.386″/35.2mm 1.386″/35.2mm Shoulder L2 3.937″/100mm 3.937″/100mm 3.937″/100mm