Button Head Socket Cap Screws
Imperial Button Head Screws with Hex Socket – UNC & UNF
High-quality imperial button head screws with internal hex drive in UNC and UNF threads for workshops, restorers, motorcyclists, U.S. car owners, and service technicians. Manufactured to American standard ASME B18.3.
Available Grades:
- Steel Grade: Diameter #0 – 1/2": minimum HRC 39 (approx. class 12.9) | Diameter 5/8" and larger: minimum HRC 37
- Stainless Steel: 18-8 stainless, approximately equivalent to A2-50
Key Benefits:
- Rounded head provides an attractive appearance and low risk of injury
- Ideal for visible areas where clean aesthetics are important
- Higher tightening torque compared to slotted or Phillips screws
Perfect for U.S. vehicles, American motorcycles, classic car restoration, and U.S.-made machinery.
#0 UNF x 1/4" Button Head Socket Cap Screws, Alloy Steel, black oxide
Button Head Socket Cap Screws, Alloy Steel, black oxide Thread: #0 80-UNFLength: 1/4"
#0 UNF x 1/8" Button Head Socket Cap Screws, Stainless Steel 18-8
Button Head Socket Cap Screws, Stainless Steel 18-8Thread: #0 80-UNFLength: 1/8"
#0 UNF x 3/16" Button Head Socket Cap Screws, Alloy Steel, black oxide
Button Head Socket Cap Screws, Alloy Steel, black oxide Thread: #0 80-UNFLength: 3/16"
#0 UNF x 3/16" Button Head Socket Cap Screws, Stainless Steel 18-8
Button Head Socket Cap Screws, Stainless Steel 18-8Thread: #0 80-UNFLength: 3/16"
#0 UNF x 3/8" Button Head Socket Cap Screws, Alloy Steel, black oxide
Button Head Socket Cap Screws, Alloy Steel, black oxide Thread: #0 80-UNFLength: 3/8"
#1 UNF x 1/4" Button Head Socket Cap Screws, Alloy Steel, black oxide
Button Head Socket Cap Screws, Alloy Steel, black oxide Thread: #1 72-UNFLength: 1/4"
#1 UNF x 1/4" Button Head Socket Cap Screws, Stainless Steel 18-8
Button Head Socket Cap Screws, Stainless Steel 18-8Thread: #1 72-UNFLength: 1/4"
#1 UNF x 1/8 Button Head Socket Cap Screws, Alloy Steel, black oxide
Button Head Socket Cap Screws, Alloy Steel, black oxide Thread: #1 72-UNF
#1 UNF x 3/16" Button Head Socket Cap Screws, Alloy Steel, black oxide
Button Head Socket Cap Screws, Alloy Steel, black oxide Thread: #1 72-UNFLength: 3/16"
#1 UNF x 3/16" Button Head Socket Cap Screws, Stainless Steel 18-8
Button Head Socket Cap Screws, Stainless Steel 18-8Thread: #1 72-UNFLength: 3/16"
#10 UNC x 1.1/2" Button Head Socket Cap Screws, Alloy Steel, black oxide
Button Head Socket Cap Screws, Alloy Steel, black oxide Thread: #10 24-UNCLength: 1.1/2"
#10 UNC x 1.1/2" Button Head Socket Cap Screws, Stainless Steel 18-8
Button Head Socket Cap Screws, Stainless Steel 18-8Thread: #10 24-UNCLength: 1.1/2"
#10 UNC x 1.1/4" Button Head Socket Cap Screws, Alloy Steel, black oxide
Button Head Socket Cap Screws, Alloy Steel, black oxide Thread: #10 24-UNCLength: 1.1/4"
#10 UNC x 1.3/4" Button Head Socket Cap Screws, Alloy Steel, black oxide
Button Head Socket Cap Screws, Alloy Steel, black oxide Thread: #10 24-UNCLength: 1.3/4"
#10 UNC x 1.3/4" Button Head Socket Cap Screws, Stainless Steel 18-8
Button Head Socket Cap Screws, Stainless Steel 18-8Thread: #10 24-UNCLength: 1.3/4"
#10 UNC x 1" Button Head Socket Cap Screws, Alloy Steel, black oxide
Button Head Socket Cap Screws, Alloy Steel, black oxide Thread: #10 24-UNCLength: 1"
#10 UNC x 1" Button Head Socket Cap Screws, Stainless Steel 18-8
Button Head Socket Cap Screws, Stainless Steel 18-8Thread: #10 24-UNCLength: 1"
#10 UNC x 1/2" Button Head Socket Cap Screws, Alloy Steel, black oxide
Button Head Socket Cap Screws, Alloy Steel, black oxide Thread: #10 24-UNCLength: 1/2"
#10 UNC x 1/2" Button Head Socket Cap Screws, Alloy Steel, zinc plated
Button Head Socket Cap Screws, Alloy Steel, zinc platedThread: #10 24-UNCLength: 1/2"
#10 UNC x 1/2" Button Head Socket Cap Screws, Stainless Steel 18-8
Button Head Socket Cap Screws, Stainless Steel 18-8Thread: #10 24-UNCLength: 1/2"
#10 UNC x 1/4" Button Head Socket Cap Screws, Alloy Steel, black oxide
Button Head Socket Cap Screws, Alloy Steel, black oxide Thread: #10 24-UNCLength: 1/4"
#10 UNC x 1/4" Button Head Socket Cap Screws, Alloy Steel, zinc plated
Button Head Socket Cap Screws, Alloy Steel, zinc platedThread: #10 24-UNCLength: 1/4"
#10 UNC x 1/4" Button Head Socket Cap Screws, Stainless Steel 18-8
Button Head Socket Cap Screws, Stainless Steel 18-8Thread: #10 24-UNCLength: 1/4"
#10 UNC x 1/8" Button Head Socket Cap Screws, Stainless Steel 18-8
Button Head Socket Cap Screws, Stainless Steel 18-8Thread: #10 24-UNCLength: 1/8"