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Square Head Bolts

Square head bolts have a square head which enables easier wrench grip for tightening and a larger bearing area for gripping. They are usually used to match existing fasteners in an older structure.

Fasteners/Bolts/Square Head Bolts 
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5/16-18 X 1 1/4 SQUARE HEAD BOLT GR5 Z&Y

5/16-18 X 1 1/4 SQUARE HEAD BOLT GR5 Z&Y

Item #: 31C125SHB5Y

5/16-18 X 1 1/4 SQUARE HEAD BOLT GR5 Z&Y GRADE 5 ZINC & YELLOW (Cr3)

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5/16-18 X 3 SQUARE HEAD BOLT GR2 PLAIN

5/16-18 X 3 SQUARE HEAD BOLT GR2 PLAIN

Item #: 31C300SHB-P

5/16-18 X 3 SQUARE HEAD BOLT GR2 PLAIN

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5/16-18 X 1 1/4 SQUARE HEAD BOLT PLAIN

5/16-18 X 1 1/4 SQUARE HEAD BOLT PLAIN

Item #: 31C125SHB-P

5/16-18 X 1 1/4 SQUARE HEAD BOLT PLAIN

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5/8-11 X 1 3/4 SQ HD BOLT GR 5 WITH NUT

5/8-11 X 1 3/4 SQ HD BOLT GR 5 WITH NUT

Item #: /29545REVB

5/8-11 X 1 3/4 SQ HD BOLT GR 5 WITH NUT ASSEMBLED ONTO BOLT. GRADE 5 PLAIN HEX NUT

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3/8-16 X 1 SQ BOLT & SQ NUT ASSBLY ZINC.

3/8-16 X 1 SQ BOLT & SQ NUT ASSBLY ZINC.

Item #: /BOSTO10

3/8-16 X 1 SQ BOLT & SQ NUT ASSBLY ZINC.

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1/2-13 X 2in SQ HEAD BOLT 316S/S

1/2-13 X 2in SQ HEAD BOLT 316S/S

Item #: /BIRD72

1/2-13 X 2in SQ HEAD BOLT 316S/S #VPR3-367-200

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7/8-9 X 6 SQ HD BOLT,SQ NUT & HVY LOCK

7/8-9 X 6 SQ HD BOLT,SQ NUT & HVY LOCK

Item #: /MBTA06

7/8-9 X 6 SQ HD BOLT,SQ NUT & HVY LOCK HDG

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7/8-9 X 7 SQ HD BOLT,SQ NUT & HVY LOCK

7/8-9 X 7 SQ HD BOLT,SQ NUT & HVY LOCK

Item #: /MBTA08

7/8-9 X 7 SQ HD BOLT,SQ NUT & HVY LOCK HDG

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1 1/8-7 X 4 1/2 SQ HEAD BOLT GR 8 PLN

1 1/8-7 X 4 1/2 SQ HEAD BOLT GR 8 PLN

Item #: 112C450SHB8P

1 1/8-7 X 4 1/2 SQ HEAD BOLT GR 8 PLN

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1 1/8-7 X 5 1/2 SQ HEAD BOLT GR 8 PLN

1 1/8-7 X 5 1/2 SQ HEAD BOLT GR 8 PLN

Item #: 112C550SHB8P

1 1/8-7 X 5 1/2 SQ HEAD BOLT GR 8 PLN

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