View Cart
Socket Head Cap Screws, Thermal Black Oxide, Alloy (Inch)
Part Number: 581378
Specifications 581378
- Size: 1/4"-20
- Diameter: 1/4"
- Length: 3 3/4"
- Thread: UNC
-
Bolts
-
Hex Bolts
- Stainless Steel
- A286 Stainless Steel
- Inconel
- Silicon Bronze
- 17-4 Stainless Steel
- Aluminum 6061
- 2205 Duplex
- 2507 Super Duplex
- Monel 400
- Monel 500
- Grade 2
- Grade 5 & 8.8
- Grade 8 Plain
- Grade 8 & 10.9
- A307 Grade A Plain
- A307 Grade A Zinc Yellow
- A307 Grade A Hot Dipped Galvanized
- A307 Grade A Clear Zinc
- Heavy A193 Grade B7 Plain
- Heavy A307 Grade B Plain
- Heavy A307 Grade B Clear Zinc
- Heavy A307 Grade B Hot Dipped Galvanized
- Heavy Grade 5 Plain
- Heavy A354 Grade 8 Plain
-
Structural Bolts
- Heavy Hex Bolt A325 Type 1 Hot Dipped Galvanized
- Heavy Hex Bolt A325 Type 1 Plain
- Heavy Hex Bolt A490 Type 1 Plain
- Heavy Hex Bolt A490 Type 1 Plain (USA)
- TC Bolt A325 Round Head Plain (Import)
- TC Bolt A325 Round Head Plain (USA)
- TC Bolt A490 Round Head Plain (Import)
- TC Bolt A490 Round Head Plain (USA)
- Heavy Hex Bolt A325 Type 1 Hot Dipped Galvanized
- Assembled Heavy Hex Bolt A325 Hot Dipped Galvanized
- Heavy Hex Bolt A325 Type 1 Plain (USA)
- Assembled Heavy Hex Bolt A325 Plain
- Heavy Hex Bolt A325 W/ A563 Heavy Hex Nut HDG
- Heavy Hex Bolt A325 W/ A563 Heavy Hex Nut Plain
-
Carriage Bolts
- A307 Grade A Plain
- A307 Grade A W/ Hex Nut Clear Zinc
- A307 Grade A Clear Zinc
- A307 Grade A Zinc Yellow
- A307 Grade A Hot Dipped Galvanized
- 18.8 Stainless Steel
- 316 Stainless Steel
- Grade 5 Zinc Yellow
- Grade 5 Plain
- Grade 5 Clear Zinc
- Grade 5 Hot Dipped Galvanized
- Metric 4.6 DIN 603 Clear Zinc
- Metric 8.8 DIN 603 Clear Zinc
-
Plow Bolts
- No.3 Head Grade 5 Plain
- No.3 Head Grade 5 Clear Zinc
- Grade 5 W/ Hex Nuts Clear Zinc
- 170,000 Psi Plain
- Clip Head Grade 5 Plain
- Clip Head Grade 5 Zinc Cr+3
- Clip Head Grade 5 Zinc Cr+3 (25Lb Kegs)
- Clipped Head Grade 5 w/ Hex Nuts Zinc Cr+3
- Elliptical Head Grade 5 Zinc Cr+3
- Elliptical Head Grade 5 Zinc Cr+3 (25Lb Kegs)
-
Hex Bolts
-
Nuts
-
Finished Hex Nuts
- Grade 2 Plain (Inch)
- Grade 2 Zinc Cr+3 (Inch)
- Grade 2 Zinc Yellow Cr+6 (Inch)
- Grade 2 HDG (Inch)
- Grade 5 Plain (Inch)
- Grade 5 Zinc Cr+3 (Inch)
- Grade 5 Taiwan, Zinc Cr+3 (Inch)
- Grade 5 Zinc Yellow Cr+6 (Inch)
- Grade 5 Plain (Inch) (USA)
- Grade 5 Zinc Cr+3 (Inch) (USA)
- Grade 8 Plain (Inch)
- Grade 8 Zinc Bake Cr+3(Inch)
- Grade 8 Zinc Yellow Cr+6 (Inch)
- Grade 8 Plain (Usa)
- Grade 8 Zinc Yellow Cr+6 (Usa)
- Grade 8 Hardened, Plain
- Brass
- Left Hand, Plain
- Left Hand, Zinc Cr+3
- Metric Class 6, Din 934
- Metric Class 6, Din 934 Zinc Cr+3
- Metric Class 8, Din 934 Plain
- Metric Class, Din 934 Zinc Cr+3
- Metric Class 8, Din 934 Zinc Yellow
- Metric Class 10, Din 934 Plain
- Metric Class 10, Din 934 Zinc Cr+3
- Metric Class 10, Din 934, Zinc Yellow
-
Structural And Heavy Hex Nuts
- 2H A194 Plain
- 2H A194 Plain Taiwan/Korea
- 2H A194 Clear Zinc Cr+3
- 2H A194 Hot Dipped Galvanized
- 2H A194 Plain (USA)
- 2H A194 Hot Dipped Galvanized Blue Dye & Wax
- A563 A, Plain
- A563 A Clear Zinc Cr+3
- A563 A Zinc Yellow
- A563 A Hot Dipped Galvanized
- Grade C A563 Plain
- Grade C A563 Clear Zinc Cr+3
- Grade C A563 Plain (usa)
- Grade DH A563 Plain
- Grade DH A563 Hot Dipped Galvanized Wax & Blue Dye
- Grade DH A563 Plain (Usa)
- Grade DH A563 Hot Dipped Galvanized / Wax & Blue Dye (usa)
-
All Metal Locknuts
- Serrated Flange Hex, Case Hardened, Zinc Cr+3
- Serrated Flange Hex, Js500, Case Hardened Zinc Cr+3
- External Tooth Keps Hex, Zinc Cr+3
- Grade C Hex All Metal Cone, Zinc/Wax Cr+3
- Grade C Hex All Metal Cone, Taiwan, Zinc/Wax Cr+3
- Grade A, Reversible Hex, Zinc Cr+3
- Flexloc, Full Height, Plain
- Flexloc, Full Height, Cadmium
- Metric Class 8 Din 980 V Zinc Cr+3 & Waxed
- Metric Class 10 Din 980 V Zinc Cr+3 & Waxed
- Metric Class 8 External Tooth Keps Hex, Zinc Cr+3
- Metric Class 8 Hex Flange Din 6927 Zinc Cr+3
-
Finished Hex Nuts
-
Washers
-
Lockwashers
- Nord-Lock Steel Washers
- Wedge Lock Washer
- Nord-Lock Stainless Steel Washers
- Plain, Regular
- Thru Hardened, Heat Treat, Zinc Yellow
- Regular, HDG
- Monel Lock Washer
- Zinc Cr+3, Regular
- Plain, External Tooth
- Plain, Internal Tooth
- Zinc Cr+3, Internal Tooth
- Zinc Cr+3, External Tooth
- Zinc Cr+3, Internal/External Tooth
- Zinc Cr+3, Metric Din 6797A External Tooth
- Zinc Cr+3, Metric Din 6798A External Tooth Serrated
- Zinc Cr+3, Metric Din 6797J Internal Tooth
- Zinc Yellow, Metric Split, Din 127B
- Split Lock Washer - Regular, Plain
- Split Lock Washer - Plain, Hi Collar, Thru Hardened
- Split Lock Washer - Zinc Yellow, Hi Collar, Thru Hardened
- Split Lock Washer - Plain, Regular, Heat Treated (USA)
- Split Lock Washer - Heavy, Thru Hardened, Plain
- Metric Split, Thru Hardened Din 127 Plain
- Metric Split Lock Washers - Zinc Cr+3,Thru Hardened Din 127
- Metric Hi Collar - Din 7980 Plain
-
Flat Washers (Thru Hardened)
- F436 Plain Structural
- F436 Zinc/Yellow Cr+6 Structural
- F436 HDG Structural
- F436 Plain Structural (USA)
- F436 HDG Structural (USA)
- USS, Plain (USA)
- USS, Plain, Medium Carbon (Import)
- USS, Zinc Cr+3 (USA)
- USS, Zinc/Yellow (USA)
- USS, Zinc/Yellow (Import)
- SAE, Plain (Import)
- SAE, Plain (USA)
- SAE, Zinc Cr+3 (USA)
- SAE Zinc/Yellow (USA)
- SAE Zinc/Yellow (Import)
- Extra Heavy, Zinc/Yellow, Medium Carbon (USA)
- Metric, Asme B18.22M, Narrow, Zinc/Blue Cr+3 (Usa)
-
Flat Washers
- USS , Plain, Low Carbon
- USS, Zinc Clear Cr+3, Low Carbon
- USS, Zinc Yellow
- USS, HDG, Low Carbon
- SAE, Plain, Low Carbon
- Monel Flat Washer
- SAE, Zinc Cr+3, Low Carbon
- SAE, Zinc Yellow
- SAE, HDG, Low Carbon
- PKG, USS, Plain, Low Carbon
- PKG, USS, Zinc Clear Cr+3, Low Carbon
- PKG, USS, HDG, Low Carbon
- PKG, SAE, Plain, Low Carbon
- PKG, SAE, Zinc Cr+3, Low Carbon
- Fender Washer, Plain
- Fender Washer, Zinc Cr+3
- Solid Brass
- Finishing Washers, Stainless Steel 18 8
- Metric Fender Washer Din 9021B Grade A Zinc Cr+3
- Metric Din 125A, 140 Hv Zinc Cr+3
- Metric Din 125A, 140 Hv Zinc Yellow
- Metric Din 125A, 200 Hv Plain
- Metric Din 125A, 200 Hv Zinc Cr+3
- Metric Din 125A, 200Hv Zinc Yellow
- Metric Din 7349,Thick, Zinc Cr+3
- Metric Din 433, Small, Zinc Cr+3
- Metric Din 9021B, Fender Washer, Zinc Cr+3
-
Lockwashers
- Rods And Studs
-
Screws
-
Socket Head Cap Screws
- 18.8 Stainless Steel
- A286 Stainless Steel
- 316 Stainless Steel
- Monel 400
- Monel K500
- Thermal Black Oxide
- 2507 Super Duplex
- Silicon Bronze
- 2205 Duplex
- Nylon Patch, Black Oxide
- 1936 Series, Thermal Black Oxide
- Mechanical Zinc
- Nylon Pellet, Thermal Black Oxide
- Whitworth Thread, Thermal Black Oxide
- Zinc Bake Cr+3
- Zinc Yellow
- Tamper Resistant, Thermal Black Oxide
- Tamper Resistant, 18.8 Stainless Steel
- Nylon Patch, 18.8 Stainless Steel
- Metric 8.8 DIN 912 Thermal Black Oxide
- Metric 12.9 DIN 912 Thermal Black Oxide
- Metric 12.9 DIN 912 Clear Zinc Bake Cr+3
- Metric 12.9 Din 912 Clear Zinc Bake Cr+6
- Metric A2 Stainless DIN 912
-
General Screws
- 17-4 Ph Stainless Steel Screws
- Monel Hex Head Cap Screws
- 6061 Aluminum Screws
- Silicon Bronze Screws
- Lag Screws
- Wood Screws
- Self Tapping Screws
- Self Tapping Screws (Stainless)
- Machine Screws
- Machine Screws (Stainless)
- Self Drilling Screws
- Proferred Screws (Drywall And Sds)
- Drywall Screws
- Construction Screws
- Drive Screws
-
Socket Head Cap Screws
-
Assorted Fasteners
-
Anchors
- Chemical Anchors
- Stud Anchors
- Sleeve Anchors
- Wedge Anchors
- Conical Plastic Anchors
- Hammer Drive Anchors
- Machine Screw Anchors
- Anchor Bolts
- Hollow Wall Anchors
- Concrete Screws
- Lag Screw Shield
- Drop In Anchors
- U Drive
- Expansion Shield Anchor
- Toggle Wing
- Wood Screw Anchors
- Mungo Products
- Nylon Nail Anchors
- E Z Ancor
- Eye Couplings
-
Anchors
- Tools & Equipment
- Materials
Copyright 2025 Fastener Solutions Inc. All Rights Reserved.
FASTENER SOLUTIONS
Phone: 866-463-2910
Fax: 800-660-6788
info@fastenersolutions.com
Fax: 800-660-6788
info@fastenersolutions.com