Bulk #2-56 Button Head Socket Cap Screws – Alloy Steel, Black Oxide
Spec sheet for #2-56 Button Head Socket Cap screws showing Head dimensions and hex key drive size.
Black #2-56 Button Head Socket Cap screws in increasing lengths on white background.
#2-56 Black Button Head Socket screws for US or SAE applications.
Black #2-56 x 3/16 in. socket button head screws, with US penny for size.
Black #2-56 x 1/4 in. button head socket cap screws, with US penny for size.
Black #2-56 x 3/8" button head socket cap screws, with US penny for size.
Black #2-56 x 1/2" socket button head screws, with US penny for size.
Black #2-56 x 5/8 in. button head socket cap screws, with US penny to show size.
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Bulk #2-56 Button Head Socket Cap Screws – Alloy Steel, Black OxideSpec sheet for #2-56 Button Head Socket Cap screws showing Head dimensions and hex key drive size.Black #2-56 Button Head Socket Cap screws in increasing lengths on white background.#2-56 Black Button Head Socket screws for US or SAE applications.Black #2-56 x 3/16 in. socket button head screws, with US penny for size.Black #2-56 x 1/4 in. button head socket cap screws, with US penny for size.Black #2-56 x 3/8" button head socket cap screws, with US penny for size.Black #2-56 x 1/2" socket button head screws, with US penny for size.Black #2-56 x 5/8 in. button head socket cap screws, with US penny to show size.

Bulk #2-56 Button Head Socket Cap Screws – Alloy Steel, Black Oxide

MonsterBULKS
Length: 1000 QTY - #2-56x1/8"
Price:
$53.98

Description

MonsterBolts Bulk #2-56 Button Head Socket Cap Screws Black Oxide Alloy Steel

Monster Overview:

Dependable, compact, and built for performance — Bulk #2-56 Button Head Socket Cap Screws from Monster Bolts deliver high-strength fastening in a small form factor. Made from premium alloy steel and finished with a thermal black oxide + oil coating, these screws offer exceptional strength with a sleek, professional appearance and mild oxidation resistance.

Each screw conforms to ASME B18.3 and IFI-111 dimensional standards and is manufactured from ASTM A574 alloy steel for a tensile strength of approximately 180,000 psi. All Monster Bolts black oxide socket fasteners are fully RoHS compliant and ship directly from our U.S. warehouse for fast, reliable delivery.

Key Features:

  • High Strength: ASTM A574 alloy steel delivers 180,000 psi tensile and 162,000 psi yield strength for diameters ≤ 1/2".
  • Low-Profile Design: Rounded button head provides smooth finishes and minimizes snagging or interference.
  • Drive: Uses a standard 0.050" hex key for easy installation and precision torque. Available here if you need a fresh one!
  • Finish: Thermal black oxide with light oil treatment enhances appearance and provides mild corrosion resistance.
  • Compliance: Meets ASME B18.3 / IFI-111 standards; material conforms to ASTM A574; fully RoHS compliant.

Monster Specifications:

Specification Detail
Diameter / Thread Size #2-56 (UNC – Unified Coarse Thread)
Drive Size 0.050" Hex Key (Allen Wrench)
Material Alloy Steel per ASTM A574 (≈ Class 12.9 Equivalent)
Finish Thermal Black Oxide + Oil
Tensile Strength 180,000 psi (≤ 1/2" Diameter)
Yield Strength 162,000 psi (≤ 1/2" Diameter)
Hardness Rockwell C39 Minimum
Standards ASME B18.3 / IFI-111 / ASTM A574
RoHS Compliance Yes – Black Oxide Finish

Measurement Note:

For button head socket cap screws, overall length is measured from under the head to the tip of the screw.

Matching Products:

Order with Confidence:

Every Monster Bolts bulk order ships fast from our U.S. warehouse and is backed by our commitment to precision, consistency, and quality. Trusted by manufacturers, technicians, and builders across the U.S.

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