Hole for 4mm Bolts

Shopping Options

Outer Diameter

1. 1/4 in.----------6.35mm (37)
2. 5/16 in.--------7.94mm (40)
3. 3/8 in.----------9.53mm (27)
4. 3/4 in.---------19.05mm (4)

Bolt Hole Size / Inner DIameter

1. For 4mm Screws (1)
2. For #8 or 4mm Screws (103)

Length Decimal/Fraction/Metric

1. 0.124 in.----------- (1)
2. 0.125 in.-----1/8----3.18mm (3)
3. 0.138 in.-------------3.5mm (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 (3)
8. 0.196 in.------------ (1)
9. 0.203 in.---13/64---5.16mm (2)
10. 0.219 in.----7/32----5.56mm (3)
11. 0.225 in.-------------5.72mm (1)
12. 0.2345 in.--15/64--5.95mm (2)
13. 0.250 in.-----1/4----6.35mm (5)
14. 0.2655 in.--17/64--6.75mm (2)
15. 0.281 in.----9/32---7.14mm (3)
16. 0.288 in.-------------7.32mm (1)
17. 0.297 in.---19/64---7.54mm (2)
18. 0.3125 in.---5/16---7.94mm (4)
19. 0.328 in.---21/64---8.33mm (2)
20. 0.344 in.---11/32---8.74mm (2)
21. 0.350 in.-------------8.89mm (1)
22. 0.375 in.-----3/8----9.53mm (4)
23. 0.406 in.---13/32---10.31mm (3)
24. 0.4375 in.---7/16---11.11mm (3)
25. 0.469 in.---15/32---11.91mm (2)
26. 0.4844 in.--31/64--12.3mm (1)
27. 0.500 in.-----1/2----12.7mm (3)
28. 0.531 in.---17/32---13.49mm (3)
29. 0.547 in.---35/64---13.89mm (1)
30. 0.5625 in.---9/16---14.29mm (3)
31. 0.578 in.--37/64--14.68mm (1)
32. 0.625 in.-----5/8----15.88mm (3)
33. 0.6875 in.--11/16--17.46mm- (2)
34. 0.719 in.---23/32---18.26mm (1)
35. 0.750 in.----3/4-----19.05mm (3)
36. 0.800 in.----------- (1)
37. 0.8125 in.--13/16--20.64mm (2)
38. 0.844 in.---27/32---21.43mm (1)
39. 0.846 in.------------ (1)
40. 0.875 in.----7/8-----22.23mm (1)
41. 0.9375 in.--15/16--23.81mm (3)
42. 1 inch---------1-----25.4mm (3)
43. 1.0625 in.-1-1/16--27mm- (2)
44. 1.125 in.---1-1/8---28.58mm (2)
45. 1.1875 in.--1-3/16-30.16mm (2)
46. 1.250 in.---1-1/4---31.75mm (1)
47. 1.3125 in.-1-5/16--33.34mm (2)
48. 1.375 in.---1-3/8---34.93mm (2)
49. 1.4375 in.--1-7/16-36.51mm (2)
50. 1.500 in.---1-1/2---38.1mm (2)