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Fasteners

Hex Head Cap Screws UNC

Grade 2 Zinc Grade 5 Zinc 1/4 - 20 1/4 - 20 5/16 - 18 5/16 - 18 3/8 - 16 3/8 - 16 1/2 - 13 1/2 - 13 5/8 - 11 7/16 - 14 3/4 - 10 9/16 - 12

Carriage Bolts UNC Steel Zinc

1/4 - 20 5/16 - 18 1/2 - 13 3/8 - 16

Hex Head Cap Screws UNC

1/4 - 20 5/16 - 18 3/8 - 16 1/2 - 13

Machine Screws
Slotted, Flat, Round, Pan, Combo*
Steel Zinc

6 - 32* 8 - 32* 10 - 24 10 - 32 1/4 - 20* 5/16 - 18 3/8 - 16 1/2 - 13

Slotted Stove Bolts with Hex Nuts Steel Zinc
Round, Flat, Mushroom* Heads

6 - 32 8 - 32* 10 - 24* 1/4 - 20* 5/16 - 18* 3/8 - 16*

Sheet Metal Screws Zinc
Slotted, Flat, Pan, Combo*
Hex Washer Head+

4 - 24 6 - 18*+ 8 - 15*+ 10 - 12*+ 12 - 11*+ 14-10*+

Self Drilling Screws Zinc
Hex Washer, Phillips Pan Head*

6 -20* 8 - 18* 10 - 16* 12 - 14 14 - 10

Phillips Flat Head
Wood Screws Steel Zinc

4 - 22 6 - 18 8 - 15 9 - 14 10 - 13 12 - 11 14 - 10