SQUARE HEAD MACHINE BOLTS

Square Head Bolts are similar to Hex Cap screws but have a 4-sided square head instead of a 6-sided hexagonal head. They are commonly referred to as both bolts and screws and are designed to be driven with a wrench. Square Head Bolts are partially threaded with a shoulder beneath the head.
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1-8 X 12 SQUARE HEAD MACHINE BOLT GRADE 5 PLAIN
  • 100C1200BSQ5
  • 1-8 X 12 SQUARE HEAD MACHINE BOLT GRADE 5 PLAIN
  • Weight: 2.9210000
Grade: GRADE 5
Diameter: 1
Thread: COARSE
Length: 2
Finish: PLAIN
1-8 X 3 1/2 SQUARE HEAD MACHINE BOLT GRADE 5 PLAIN
  • 100C350BSQ5
  • 1-8 X 3 1/2 SQUARE HEAD MACHINE BOLT GRADE 5 PLAIN
  • Weight: 1.0700000
Grade: GRADE 5
Diameter: 1
Thread: COARSE
Length: 3 1/2
Finish: PLAIN
1-8 X 4 1/2 SQUARE HEAD MACHINE BOLT GRADE 8 PLAIN
  • 100C450BSQ8
  • 1-8 X 4 1/2 SQUARE HEAD MACHINE BOLT GRADE 8 PLAIN
  • Weight: 1.2800000
Grade: GRADE 8
Diameter: 1
Thread: COARSE
Length: 4 1/2
Finish: PLAIN
1-8 X 5 SQUARE HEAD MACHINE BOLT GRADE 8 PLAIN
  • 100C500BSQ8
  • 1-8 X 5 SQUARE HEAD MACHINE BOLT GRADE 8 PLAIN
  • Weight: 1.3900000
Grade: GRADE 8
Diameter: 1
Thread: COARSE
Length: 5
Finish: PLAIN
1-8 X 5 1/2 SQUARE HEAD MACHINE BOLT GRADE 5 PLAIN
  • 100C550BSQ5
  • 1-8 X 5 1/2 SQUARE HEAD MACHINE BOLT GRADE 5 PLAIN
Grade: GRADE 5
Diameter: 1
Thread: COARSE
Length: 5 1/2
Finish: PLAIN
1-8 X 8 SQUARE HEAD MACHINE BOLT GRADE 5 PLAIN
Grade: GRADE 5
Diameter: 1
Thread: COARSE
Length: 8
Finish: PLAIN
1-8 X 8 SQUARE HEAD MACHINE BOLT GRADE 8 PLAIN
  • 100C800BSQ8
  • 1-8 X 8 SQUARE HEAD MACHINE BOLT GRADE 8 PLAIN
  • Weight: 2.0305000
Grade: GRADE 8
Diameter: 1
Thread: COARSE
Length: 8
Finish: PLAIN
1-8 X 9 SQUARE HEAD MACHINE BOLT GRADE 8 PLAIN
  • 100C900BSQ8
  • 1-8 X 9 SQUARE HEAD MACHINE BOLT GRADE 8 PLAIN
  • Weight: 2.2400000
Grade: GRADE 8
Diameter: 1
Thread: COARSE
Length: 9
Finish: PLAIN
1 1/4-7 X 10 SQUARE HEAD MACHINE BOLT J429 GRADE 5 PLAIN
  • 125C1000BSQ5
  • 1 1/4-7 X 10 SQUARE HEAD MACHINE BOLT J429 GRADE 5 PLAIN
  • Weight: 3.8978000
Grade: GRADE 5
Diameter: 1 1/4
Thread: COARSE
Length: 10
Finish: PLAIN
1 1/4-7 X 10 1/2 SQUARE HEAD MACHINE BOLT GRADE 5 PLAIN
  • 125C1050BSQ5
  • 1 1/4-7 X 10 1/2 SQUARE HEAD MACHINE BOLT GRADE 5 PLAIN
Grade: GRADE 5
Diameter: 1 1/4
Thread: COARSE
Length: 10 1/2
Finish: PLAIN
3/8-16 X 1 SQUARE HEAD MACHINE BOLT ZINC PLATED
  • 37C100BSQZ
  • 3/8-16 X 1 SQUARE HEAD MACHINE BOLT ZINC PLATED
  • Weight: 0.0403000
Grade: A307 GRADE A
Diameter: 3/8
Thread: COARSE
Length: 1
Finish: ZINC PLATED
3/8-16 X 1 1/2 SQUARE HEAD MACHINE BOLT GRADE 5 PLAIN
  • 37C150BSQ5
  • 3/8-16 X 1 1/2 SQUARE HEAD MACHINE BOLT GRADE 5 PLAIN
Grade: GRADE 5
Diameter: 3/8
Thread: COARSE
Length: 1 1/2
Finish: PLAIN
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