5/16" (8mm) Outer Diameter

Shopping Options

Bolt Hole Size / Inner DIameter

1. For #6 or 3mm Screws (21)
2. For 4mm Screws (1)
3. For #8 or 4mm Screws (41)
4. For #10 Screws (39)
5. For 5mm or #10 Screws (30)
6. For #12 or 5mm Screws (5)
7. For 6mm or #12 Screws (1)
8. For 6mm or #12 Screws (13)
9. For 1/4" or 6mm Bolts (15)

Length Decimal/Fraction/Metric

1. 0.0625 in.---1/16--1.59mm (1)
2. 0.118 in.-------------3mm (2)
3. 0.124 in.----------- (1)
4. 0.125 in.-----1/8----3.18mm (2)
5. 0.129 in.-------------3.28mm (1)
6. 0.138 in.-------------3.5mm (1)
7. 0.141 in.----9/64---3.58mm (4)
8. 0.145 in.----------- (1)
9. 0.155 in.----------- (1)
10. 0.156 in.----5/32---3.96mm (4)
11. 0.1575 in.-----------4mm (2)
12. 0.172 in.---11/64---4.37mm (3)
13. 0.1875 in.---3/16---4.76mm (5)
14. 0.197 in.-------------5mm (1)
15. 0.200 in.-------------5.08mm (1)
16. 0.203 in.---13/64---5.16mm (2)
17. 0.219 in.----7/32----5.56mm (3)
18. 0.2345 in.--15/64--5.95mm (4)
19. 0.236 in.-------------6mm (2)
20. 0.250 in.-----1/4----6.35mm (8)
21. 0.255 in.-------------6.48mm (1)
22. 0.258 in.-------------6.55mm (1)
23. 0.2655 in.--17/64--6.75mm (1)
24. 0.272 in.-------------6.92mm (1)
25. 0.2755 in.-----------7mm (1)
26. 0.281 in.----9/32---7.14mm (3)
27. 0.297 in.---19/64---7.54mm (2)
28. 0.3125 in.---5/16---7.94mm (4)
29. 0.315 in.-------------8mm (2)
30. 0.328 in.---21/64---8.33mm (2)
31. 0.335 in.----------- (1)
32. 0.344 in.---11/32---8.74mm (3)
33. 0.354 in.-------------9mm (3)
34. 0.375 in.-----3/8----9.53mm (8)
35. 0.394 in.-------------10mm (3)
36. 0.406 in.---13/32---10.31mm (2)
37. 0.433 in.-------------11mm (3)
38. 0.4375 in.---7/16---11.11mm (6)
39. 0.453 in.---29/64---11.5mm (1)
40. 0.469 in.---15/32---11.91mm (2)
41. 0.472 in.-------------12mm (2)
42. 0.500 in.-----1/2----12.7mm (6)
43. 0.500 in.-----1/2----12.7mm (2)
44. 0.512 in.-------------13mm (1)
45. 0.531 in.---17/32---13.49mm (2)
46. 0.551 in.-------------14mm (3)
47. 0.5625 in.---9/16---14.29mm (4)
48. .565 in.-------14.95 (1)
49. 0.591 in.-------------15mm (2)
50. 0.600 in.-------------15.24mm (1)
51. 0.625 in.-----5/8----15.88mm (4)
52. 0.630 in.-------------16mm (1)
53. 0.650 in.-------------16.51mm (1)
54. 0.669 in.-------------17mm (1)
55. 0.6875 in.--11/16--17.46mm- (3)
56. 0.720 in.-------------18.30mm (1)
57. 0.748 in.-------------19mm (2)
58. 0.750 in.----3/4-----19.05mm (5)
59. 0.788 in.-------------20mm (1)
60. 0.8125 in.--13/16--20.64mm (3)
61. 0.846 in.------------ (1)
62. 0.866 in.-------------22mm (1)
63. 0.875 in.----7/8-----22.23mm (3)
64. 0.9055 in.------------23mm (1)
65. 0.9375 in.--15/16--23.81mm (3)
66. 1 inch---------1-----25.4mm (3)
67. 1.0625 in.-1-1/16--27mm- (2)
68. 1.125 in.---1-1/8---28.58mm (1)
69. 1.1875 in.--1-3/16-30.16mm (2)
70. 1.250 in.---1-1/4---31.75mm (1)
71. 1.280 in.-------------32.5mm (1)
72. 1.3125 in.-1-5/16--33.34mm (2)
73. 1.375 in.---1-3/8---34.93mm (1)
74. 1.4375 in.--1-7/16-36.51mm (2)
75. 1.500 in.---1-1/2---38.1mm (1)

Metal Alloy

1. Aluminum 6061-T6 (166)
2. Brass (4)