3/8" (9.5mm) Outer Diameter

Shopping Options

Outer Diameter

1. 3/8 in.----------9.53mm (183)

Bolt Hole Size / Inner DIameter

1. For #6 or 3mm Screws (4)
2. For #8 or 4mm Screws (29)
3. For #10 Screws (31)
4. For 5mm or #10 Screws (6)
5. For #12 or 5mm Screws (41)
6. .225 in (5.72mm) (2)
7. For 6mm or #12 Screws (8)
8. For 1/4" or 6mm Bolts (53)
9. 9/32 in. (7.14mm) (2)
10. .300 (7.6mm) (1)
11. .312 in (7.92mm) (1)
12. For 5/16" or 8mm Bolts (3)

Length Decimal/Fraction/Metric

1. 0.125 in.-----1/8----3.18mm (4)
2. 0.130 in.-------------3.30mm (1)
3. 0.134 in.----------- (1)
4. 0.141 in.----9/64---3.58mm (3)
5. 0.156 in.----5/32---3.96mm (4)
6. 0.172 in.---11/64---4.37mm (2)
7. 0.1875 in.---3/16---4.76mm (4)
8. 0.196 in.------------ (1)
9. 0.203 in.---13/64---5.16mm (2)
10. 0.210 in.-------------5.33mm (1)
11. 0.210 in.------5.94 (1)
12. 0.219 in.----7/32----5.56mm (5)
13. 0.2345 in.--15/64--5.95mm (2)
14. 0.250 in.-----1/4----6.35mm (10)
15. 0.2655 in.--17/64--6.75mm (3)
16. 0.275 in.----------- (1)
17. 0.281 in.----9/32---7.14mm (5)
18. 0.288 in.-------------7.32mm (1)
19. 0.297 in.---19/64---7.54mm (2)
20. 0.3125 in.---5/16---7.94mm (6)
21. 0.315 in.-------------8mm (1)
22. 0.328 in.---21/64---8.33mm (2)
23. 0.344 in.---11/32---8.74mm (3)
24. 0.354 in.-------------9mm (2)
25. 0.375 in.-----3/8----9.53mm (9)
26. 0.394 in.-------------10mm (3)
27. 0.406 in.---13/32---10.31mm (4)
28. 0.413 in.-------------10.5mm (1)
29. 0.4375 in.---7/16---11.11mm (4)
30. 0.469 in.---15/32---11.91mm (2)
31. 0.500 in.-----1/2----12.7mm (5)
32. 0.531 in.---17/32---13.49mm (3)
33. 0.5625 in.---9/16---14.29mm (4)
34. 0.567 in.-------------14.40mm (1)
35. 0.625 in.-----5/8----15.88mm (4)
36. 0.630 in.-------------16mm (1)
37. 0.6405 in.--41/64--16.27mm (1)
38. 0.656 in.---21/32---16.66mm (1)
39. 0.6875 in.--11/16--17.46mm- (4)
40. 0.689 in.-----------17.5mm (1)
41. 0.750 in.----3/4-----19.05mm (4)
42. 0.788 in.-------------20mm (1)
43. 0.8125 in.--13/16--20.64mm (3)
44. 0.872 in.-------------22.149mm (1)
45. 0.875 in.----7/8-----22.23mm (3)
46. 0.906 in.---29/32---23.02mm (2)
47. 0.9375 in.--15/16--23.81mm (4)
48. 0.969 in.---31/32---24.61mm (1)
49. 1 inch---------1-----25.4mm (8)
50. 1.0625 in.-1-1/16--27mm- (4)
51. 1.125 in.---1-1/8---28.58mm (4)
52. 1.142 in.-------------29mm (1)
53. 1.172 in.----------- (1)
54. 1.1875 in.--1-3/16-30.16mm (4)
55. 1.236 in.-------------31.39mm (1)
56. 1.242 in------------ (1)
57. 1.250 in.---1-1/4---31.75mm (4)
58. 1.3125 in.-1-5/16--33.34mm (4)
59. 1.3595 in.-1-23/64-34.53mm (1)
60. 1.375 in.---1-3/8---34.93mm (3)
61. 1.378 in.-------------35mm (1)
62. 1.4375 in.--1-7/16-36.51mm (4)
63. 1.469 in.--1-15/32-37.31mm (1)
64. 1.4845 in.-1-31/64-37.70mm (1)
65. 1.500 in.---1-1/2---38.1mm (6)

Metal Alloy

1. Aluminum 6061-T6 (175)
2. Steel (4)
3. Brass (1)
4. Stainless Steel 303/18-8 (2)