28 x 4 1 2
- 1 4 28 x 1 2 screw
- 1 4 28 x 1 2 bolt
- 4 x 1 )- 20 28
- 1 4 28 x 1 2 set screw
- 1 4 28 x 1 2 hex bolt
- 1 4 28 x 1 2 machine screw
- 1 4 28 x 1 2 flange bolt
- 1 4 28 x 1 2 thumb screw
- 1 4 28 x 2.5 grade 5 bolt
- 1 4 28 x 3 1 2 bolt
- 1 4 28 x 2.5
- 1 4 28 x 3 1 2
- 1 4 28 x 2.5 bolt
- 1 4 28 x 3 1 2 machine screw
- 1 4 28 x 2 1 2 shcs