Gunsmithing Screws
Wide variety of sizes
Square Head Bolts
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Original price $8.81 - Original price $8.81Original price$8.81$8.81 - $8.81Current price $8.815/16"-18 x 1" Zinc Grade 2 / A307 Square Head Bolts (10 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Length: 1"Material: SteelFinish: ZincHead Style: Square (1/2" Wrench)Thread Size: 18 (Coarse)Hardness: Grade 2 / A307Type: Square He...
View full detailsOriginal price $8.81 - Original price $8.81Original price$8.81$8.81 - $8.81Current price $8.81 -
Original price $28.91 - Original price $28.91Original price$28.91$28.91 - $28.91Current price $28.911/4"-20 x 1" 18-8 Stainless Square Head Track Bolts (50 pcs.)
Monster Fastener10+ in stockDiameter: 1/4"Length: 1"Material: Stainless SteelHead Style: Square (7/16" Wrench)Thread Size: 20 (Coarse)Thread Length: FullHardness: 18-8Type: Sq...
View full detailsOriginal price $28.91 - Original price $28.91Original price$28.91$28.91 - $28.91Current price $28.91 -
Original price $11.95 - Original price $11.95Original price$11.95$11.95 - $11.95Current price $11.953/8"-16 x 2-1/2" Zinc Grade 2 / A307 Square Head Bolts (10 pcs.)
Monster Fastener10+ in stockDiameter: 3/8"Length: 2-1/2"Material: SteelFinish: ZincHead Style: Square (9/16" Wrench)Thread Size: 16 (Coarse)Hardness: Grade 2 / A307Type: Squar...
View full detailsOriginal price $11.95 - Original price $11.95Original price$11.95$11.95 - $11.95Current price $11.95 -
Original price $10.71 - Original price $10.71Original price$10.71$10.71 - $10.71Current price $10.713/8"-16 x 1-1/2" Zinc Grade 2 / A307 Square Head Bolts (10 pcs.)
Monster Fastener10+ in stockDiameter: 3/8"Length: 1-1/2"Material: SteelFinish: ZincHead Style: Square (9/16" Wrench)Thread Size: 16 (Coarse)Hardness: Grade 2 / A307Type: Squar...
View full detailsOriginal price $10.71 - Original price $10.71Original price$10.71$10.71 - $10.71Current price $10.71 -
Original price $10.23 - Original price $10.23Original price$10.23$10.23 - $10.23Current price $10.233/8"-16 x 1-1/2" Zinc Grade 2 / A307 Square Head Bolts (10 pcs.)
Monster Fastener10+ in stockDiameter: 3/8"Length: 1-1/2"Material: SteelFinish: ZincHead Style: Square (9/16" Wrench)Thread Size: 16 (Coarse)Hardness: Grade 2 / A307Type: Squar...
View full detailsOriginal price $10.23 - Original price $10.23Original price$10.23$10.23 - $10.23Current price $10.23 -
Original price $9.68 - Original price $9.68Original price$9.68$9.68 - $9.68Current price $9.685/16"-18 x 1-1/2" Zinc Grade 2 / A307 Square Head Bolts (10 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Length: 1-1/2"Material: SteelFinish: ZincHead Style: Square (1/2" Wrench)Thread Size: 18 (Coarse)Hardness: Grade 2 / A307Type: Squar...
View full detailsOriginal price $9.68 - Original price $9.68Original price$9.68$9.68 - $9.68Current price $9.68 -
Original price $12.24 - Original price $12.24Original price$12.24$12.24 - $12.24Current price $12.243/8"-16 x 3" Zinc Grade 2 / A307 Square Head Bolts (10 pcs.)
Monster Fastener10+ in stockDiameter: 3/8"Length: 3"Material: SteelFinish: ZincHead Style: Square (9/16" Wrench)Thread Size: 16 (Coarse)Hardness: Grade 2 / A307Type: Square He...
View full detailsOriginal price $12.24 - Original price $12.24Original price$12.24$12.24 - $12.24Current price $12.24 -
Original price $9.52 - Original price $9.52Original price$9.52$9.52 - $9.52Current price $9.523/8"-16 x 1" Zinc Grade 2 / A307 Square Head Bolts (10 pcs.)
Monster Fastener10+ in stockDiameter: 3/8"Length: 1"Material: SteelFinish: ZincHead Style: Square (9/16" Wrench)Thread Size: 16 (Coarse)Hardness: Grade 2 / A307Type: Square He...
View full detailsOriginal price $9.52 - Original price $9.52Original price$9.52$9.52 - $9.52Current price $9.52 -
Original price $9.12 - Original price $9.12Original price$9.12$9.12 - $9.12Current price $9.121/4"-20 x 1" Zinc Grade 2 / A307 Square Head Bolts (15 pcs.)
Monster Fastener10+ in stockDiameter: 1/4"Length: 1"Material: SteelFinish: ZincHead Style: Square (3/8" Wrench)Thread Size: 20 (Coarse)Hardness: Grade 2 / A307Type: Square Hea...
View full detailsOriginal price $9.12 - Original price $9.12Original price$9.12$9.12 - $9.12Current price $9.12 -
Original price $10.86 - Original price $12.97Original price$10.86 - $12.97$10.86 - $12.97Current price $10.863/8"-16 x 4" Zinc Plated Grade 2 / A307 Steel Coarse Thread Square Head Bolts
Monster Fastener10+ in stockDiameter: 3/8"Length: 4"Material: SteelFinish: ZincHead Style: Square (9/16" Wrench)Thread Size: 16 (Coarse)Hardness: Grade 2 / A307Type: Square He...
View full detailsOriginal price $10.86 - Original price $12.97Original price$10.86 - $12.97$10.86 - $12.97Current price $10.86 -
Original price $11.59 - Original price $11.59Original price$11.59$11.59 - $11.59Current price $11.593/8"-16 x 2" Zinc Grade 2 / A307 Square Head Bolts (10 pcs.)
Monster Fastener10+ in stockDiameter: 3/8"Length: 2"Material: SteelFinish: ZincHead Style: Square (9/16" Wrench)Thread Size: 16 (Coarse)Hardness: Grade 2 / A307Type: Square He...
View full detailsOriginal price $11.59 - Original price $11.59Original price$11.59$11.59 - $11.59Current price $11.59 -
Original price $10.69 - Original price $10.69Original price$10.69$10.69 - $10.69Current price $10.695/16"-18 x 1-1/2" Zinc Grade 2 / A307 Square Head Bolts (10 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Length: 1-1/2"Material: SteelFinish: ZincHead Style: Square (1/2" Wrench)Thread Size: 18 (Coarse)Hardness: Grade 2 / A307Type: Squar...
View full detailsOriginal price $10.69 - Original price $10.69Original price$10.69$10.69 - $10.69Current price $10.69 -
Original price $10.28 - Original price $10.28Original price$10.28$10.28 - $10.28Current price $10.285/16"-18 x 1" Zinc Grade 2 / A307 Square Head Bolts (12 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Length: 1"Material: SteelFinish: ZincHead Style: Square (1/2" Wrench)Thread Size: 18 (Coarse)Hardness: Grade 2 / A307Type: Square He...
View full detailsOriginal price $10.28 - Original price $10.28Original price$10.28$10.28 - $10.28Current price $10.28 -
Original price $11.57 - Original price $11.57Original price$11.57$11.57 - $11.57Current price $11.573/8"-16 x 2-1/2" Zinc Grade 2 / A307 Square Head Bolts (10 pcs.)
Monster Fastener10+ in stockDiameter: 3/8"Length: 2-1/2"Material: SteelFinish: ZincHead Style: Square (9/16" Wrench)Thread Size: 16 (Coarse)Hardness: Grade 2 / A307Type: Squar...
View full detailsOriginal price $11.57 - Original price $11.57Original price$11.57$11.57 - $11.57Current price $11.57 -
Original price $9.93 - Original price $9.93Original price$9.93$9.93 - $9.93Current price $9.931/4"-20 x 1-1/2" Zinc Grade 2 / A307 Square Head Bolts (12 pcs.)
Monster Fastener10+ in stockDiameter: 1/4"Length: 1-1/2"Material: SteelFinish: ZincHead Style: Square (3/8" Wrench)Thread Size: 20 (Coarse)Hardness: Grade 2 / A307Type: Square...
View full detailsOriginal price $9.93 - Original price $9.93Original price$9.93$9.93 - $9.93Current price $9.93 -
Original price $10.29 - Original price $14.73Original price$10.29 - $14.73$10.29 - $14.73Current price $10.29Replacement Battery Terminal Bolts and Nuts
Monster Fastener10+ in stockDiameter: 5/16"Length: 1-1/4"Material: SteelFinish: ZincHead Style: Square (1/2" Wrench)Thread Size: 18 (Coarse)Type: Square Head BoltA square head...
View full detailsOriginal price $10.29 - Original price $14.73Original price$10.29 - $14.73$10.29 - $14.73Current price $10.29 -
Original price $10.38 - Original price $12.39Original price$10.38 - $12.39$10.38 - $12.39Current price $10.385/16"-18 x 1-3/8" Zinc Plated Grade 2 / A307 Steel Coarse Thread Square Head Bolts
Monster Fastener10+ in stockDiameter: 5/16"Length: 1-3/8"Material: SteelFinish: ZincHead Style: Square (1/2" Wrench)Thread Size: 18 (Coarse)Hardness: Grade 2 / A307Type: Squar...
View full detailsOriginal price $10.38 - Original price $12.39Original price$10.38 - $12.39$10.38 - $12.39Current price $10.38 -
Original price $10.26 - Original price $11.43Original price$10.26 - $11.43$10.26 - $11.43Current price $10.265/16"-18 x 4" Zinc Plated Grade 2 / A307 Steel Coarse Thread Square Head Bolts
Monster Fastener10+ in stockDiameter: 5/16"Length: 4"Material: SteelFinish: ZincHead Style: Square (1/2" Wrench)Thread Size: 18 (Coarse)Hardness: Grade 2 / A307Type: Square He...
View full detailsOriginal price $10.26 - Original price $11.43Original price$10.26 - $11.43$10.26 - $11.43Current price $10.26 -
Original price $11.66 - Original price $11.66Original price$11.66$11.66 - $11.66Current price $11.663/8"-16 x 3" Zinc Grade 2 / A307 Square Head Bolts (8 pcs.)
Monster FastenerOnly 9 left!Diameter: 3/8"Length: 3"Material: SteelFinish: ZincHead Style: Square (9/16" Wrench)Thread Size: 16 (Coarse)Hardness: Grade 2 / A307Type: Square He...
View full detailsOriginal price $11.66 - Original price $11.66Original price$11.66$11.66 - $11.66Current price $11.66 -
Original price $11.06 - Original price $11.06Original price$11.06$11.06 - $11.06Current price $11.063/8"-16 x 1-3/4" Zinc Grade 2 / A307 Square Head Bolts (10 pcs.)
Monster Fastener10+ in stockDiameter: 3/8"Length: 1-3/4"Material: SteelFinish: ZincHead Style: Square (9/16" Wrench)Thread Size: 16 (Coarse)Hardness: Grade 2 / A307Type: Squar...
View full detailsOriginal price $11.06 - Original price $11.06Original price$11.06$11.06 - $11.06Current price $11.06 -
Original price $10.38 - Original price $10.38Original price$10.38$10.38 - $10.38Current price $10.383/8"-16 x 1-1/4" Zinc Grade 2 / A307 Square Head Bolts (10 pcs.)
Monster Fastener10+ in stockDiameter: 3/8"Length: 1-1/4"Material: SteelFinish: ZincHead Style: Square (9/16" Wrench)Thread Size: 16 (Coarse)Hardness: Grade 2 / A307Type: Squar...
View full detailsOriginal price $10.38 - Original price $10.38Original price$10.38$10.38 - $10.38Current price $10.38 -
Original price $10.65 - Original price $10.65Original price$10.65$10.65 - $10.65Current price $10.653/8"-16 x 1" Zinc Grade 2 / A307 Square Head Bolts (12 pcs.)
Monster Fastener10+ in stockDiameter: 3/8"Length: 1"Material: SteelFinish: ZincHead Style: Square (9/16" Wrench)Thread Size: 16 (Coarse)Hardness: Grade 2 / A307Type: Square He...
View full detailsOriginal price $10.65 - Original price $10.65Original price$10.65$10.65 - $10.65Current price $10.65 -
Original price $11.09 - Original price $11.09Original price$11.09$11.09 - $11.09Current price $11.095/16"-18 x 3" Zinc Grade 2 / A307 Square Head Bolts (8 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Length: 3"Material: SteelFinish: ZincHead Style: Square (1/2" Wrench)Thread Size: 18 (Coarse)Hardness: Grade 2 / A307Type: Square He...
View full detailsOriginal price $11.09 - Original price $11.09Original price$11.09$11.09 - $11.09Current price $11.09 -
Original price $11.78 - Original price $11.78Original price$11.78$11.78 - $11.78Current price $11.785/16"-18 x 2-1/2" Zinc Grade 2 / A307 Square Head Bolts (10 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Length: 2-1/2"Material: SteelFinish: ZincHead Style: Square (1/2" Wrench)Thread Size: 18 (Coarse)Hardness: Grade 2 / A307Type: Squar...
View full detailsOriginal price $11.78 - Original price $11.78Original price$11.78$11.78 - $11.78Current price $11.78
