1/4" (6.35mm) Outer Diameter

Shopping Options

Bolt Hole Size / Inner DIameter

1. For #4 Screws (8)
2. For #6 or 3mm Screws (14)
3. For #8 or 4mm Screws (14)
4. For #10 Screws (6)

Length Decimal/Fraction/Metric

1. 0.125 in.-----1/8----3.18mm (3)
2. 0.141 in.----9/64---3.58mm (1)
3. 0.1875 in.---3/16---4.76mm (4)
4. 0.250 in.-----1/4----6.35mm (4)
5. 0.3125 in.---5/16---7.94mm (4)
6. 0.375 in.-----3/8----9.53mm (4)
7. 0.406 in.---13/32---10.31mm (1)
8. 0.4375 in.---7/16---11.11mm (2)
9. 0.4844 in.--31/64--12.3mm (1)
10. 0.500 in.-----1/2----12.7mm (4)
11. 0.5625 in.---9/16---14.29mm (2)
12. 0.625 in.-----5/8----15.88mm (4)
13. 0.6875 in.--11/16--17.46mm- (1)
14. 0.750 in.----3/4-----19.05mm (3)
15. 0.875 in.----7/8-----22.23mm (2)
16. 1 inch---------1-----25.4mm (2)

Metal Alloy

1. Aluminum 6061-T6 (42)