Flat Washers F436 SAE Structural Plain (ALL SIZES)

Flat Washers F436 SAE Structural Plain (ALL SIZES)

$4.99
$4.99
Free Shipping on orders over $150
Description
Description
x

🔩 Flat Washers F436 SAE Structural Plain – A325/A490 (ALL SIZES)

Description for eCommerce:

F436 Structural Flat Washers (Plain Finish) are high-strength, heat-treated flat washers engineered for use in heavy-duty structural bolted joints. They conform to ASTM F436 Type 1 standards and are made from through-hardened medium carbon steel, ensuring they maintain integrity under high clamping loads.

Designed for use with A325 and A490 structural bolts, these washers distribute load evenly across the steel surface, preventing galling and embedding. The plain (uncoated) finish offers cost efficiency where corrosion resistance is not a primary concern—ideal for indoor applications or use in protected environments.

  • Material: Through-Hardened Carbon Steel (ASTM F436 Type 1)

  • Finish: Plain (Uncoated)

  • Hardness: Rockwell 38–45 HRC

  • Standards Met: ASTM F436, SAE J429

  • Compatible With: A325, A490 Structural Bolts

  • Applications: Structural steel connections, beam and girder assemblies, steel buildings, bridges, and heavy infrastructure

📊 Size & Strength Chart: F436 SAE Structural Flat Washers – Plain Finish

Washer Size (Bolt Size) Inside Diameter (in) Outside Diameter (in) Thickness (in) Hardness (HRC) Tensile Strength (psi)
1/2" 9/16 1-3/8 0.136 – 0.177 38 – 45 100,000 – 150,000
5/8" 11/16 1-3/4 0.136 – 0.177 38 – 45 100,000 – 150,000
3/4" 13/16 2 0.136 – 0.177 38 – 45 100,000 – 150,000
7/8" 15/16 2-1/4 0.177 – 0.220 38 – 45 100,000 – 150,000
1" 1-1/16 2-1/2 0.177 – 0.220 38 – 45 100,000 – 150,000
1-1/8" 1-3/16 2-3/4 0.177 – 0.220 38 – 45 100,000 – 150,000
1-1/4" 1-5/16 3 0.177 – 0.220 38 – 45 100,000 – 150,000
1-3/8" 1-7/16 3-1/4 0.177 – 0.220 38 – 45 100,000 – 150,000
1-1/2" 1-9/16 3-1/2 0.177 – 0.220 38 – 45 100,000 – 150,000

📌 Notes:

  • Plain finish washers may rust in exposed environments — consider galvanized or zinc-coated options for outdoor use.

  • Thickness and diameter comply with ASTM F436 tolerances.

  • These are intended to be load-distributing components in critical structural assemblies, not general-purpose washers.

Shipping & Return
Shipping & Return
x
Returns are easy: Simply contact us for a return, replacement, refund, or any questions you may have about the item you received and we will help you through the process quick and easy. Refund Policy Shipping: Most items ship out within 1 business day. Ship to USA only.