1/2 (12.7mm) Outer Diameter

Shopping Options

Bolt Hole Size / Inner DIameter

1. For 3/8" Bolts (38)
2. For 10mm or 3/8" Bolts (1)
3. For 7/16" Bolts (1)

Length Decimal/Fraction/Metric

1. 0.100 in.-------------2.54mm (1)
2. 0.125 in.-----1/8----3.18mm (1)
3. 0.141 in.----9/64---3.58mm (1)
4. 0.156 in.----5/32---3.96mm (1)
5. 0.172 in.---11/64---4.37mm (1)
6. 0.1875 in.---3/16---4.76mm (1)
7. 0.219 in.----7/32----5.56mm (1)
8. 0.250 in.-----1/4----6.35mm (1)
9. 0.297 in.---19/64---7.54mm (1)
10. 0.3125 in.---5/16---7.94mm (1)
11. 0.344 in.---11/32---8.74mm (1)
12. 0.375 in.-----3/8----9.53mm (2)
13. 0.402 in.----------- (1)
14. 0.406 in.---13/32---10.31mm (1)
15. 0.4375 in.---7/16---11.11mm (1)
16. 0.469 in.---15/32---11.91mm (1)
17. 0.4844 in.--31/64--12.3mm (1)
18. 0.500 in.-----1/2----12.7mm (1)
19. 0.510 in.-------------12.95mm (1)
20. 0.531 in.---17/32---13.49mm (1)
21. 0.5625 in.---9/16---14.29mm (1)
22. 0.625 in.-----5/8----15.88mm (1)
23. 0.6875 in.--11/16--17.46mm- (1)
24. 0.750 in.----3/4-----19.05mm (1)
25. 0.8125 in.--13/16--20.64mm (1)
26. 0.875 in.----7/8-----22.23mm (1)
27. 0.9375 in.--15/16--23.81mm (1)
28. 1 inch---------1-----25.4mm (1)
29. 1.0625 in.-1-1/16--27mm- (1)
30. 1.125 in.---1-1/8---28.58mm (1)
31. 1.1875 in.--1-3/16-30.16mm (1)
32. 1.200 in------------ (1)
33. 1.250 in.---1-1/4---31.75mm (1)
34. 1.3125 in.-1-5/16--33.34mm (1)
35. 1.375 in.---1-3/8---34.93mm (1)
36. 1.400 in.-------------35.55mm (2)
37. 1.4375 in.--1-7/16-36.51mm (1)
38. 1.500 in.---1-1/2---38.1mm (1)

Metal Alloy

1. Aluminum 6061-T6 (40)