black oxide applied with structural bolts A307 1" F436 Flat washers
Hardened washers are made physically stronger through hardening or carburizing, but are generally smaller in size than your standard washer. Hardened flat washers are designed with extra strength and can be used with Grade 8 bolts and other heat-treated fasteners.
SIZE: 1/4" - 4", M6 -M100 .
STANDARD: ASTM F436/F436M
FINISHED: Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G.
Packaging Details: a. bulk in cartons (<=25kg )+ 36CTN/wood solid Pallet
b. bulk in cartons 9"x9"x5" (<=18kg )+ 48CTN/wood solid Pallet
Supply Ability:1000 tons per month
MinimumOrder:200kgs for each specification
Trade Term:FOB/CIF/CFR/CNF/EXW/DDU/DDP
Payment :T/T, L/C , D/A , D/P , Western Union,etc
Market:South&north Amrica/Europe/ etc.
| F436 STYLES |
| Style | Description | Sizes |
| Circular | Round SAE pattern | 1/4" - 4" |
| Beveled | Square or rectangular with a beveled 1 to 6 ratio surface. For use with American standard beams and channels. | 1/2" - 1-1/2" |
| Clipped | Circular or beveled | 1/2" - 1-1/2" beveled |
| 1/4" - 4" circular |
| Extra Thick | Circular washers with a thickness of 5/16" | 1/2" - 1-1/2" circular |
| F436 MECHANICAL PROPERTIES |
| Plain Finish | Hot Dip Galvanized |
| Rockwell Hardness 38 to 45 HRC | Rockwell Hardness 26 to 45 HRC |
| F436 CHEMICAL PROPERTIES |
| Element | Type 1 | Type 3 |
| Phosphorous, max | 0.04% | 0.04% |
| Sulfur, max | 0.05% | 0.05% |
| Silicon | - | 0.15% - 0.35% |
| Chromium | - | 0.45% - 0.65% |
| Nickel | - | 0.25% - 0.45% |
| Copper | - | 0.25% - 0.45% |
| Flat Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| 1/2" | 0.531" | 1.063" | 0.177" |
| 5/8" | 0.688" | 1.313" | 0.177" |
| 3/4" | 0.813" | 1.468" | 0.177" |
| 7/8" | 0.938" | 1.750" | 0.177" |
| 1" | 1.063" | 2.000" | 0.136" - 0.177" |
| 1-1/8" | 1.188" | 2.250" | 0.136" - 0.177" |
| 1-1/4" | 1.375" | 2.500" | 0.136" - 0.177" |
| 1-3/8" | 1.500" | 2.750" | 0.136" - 0.177" |
| 1-1/2" | 1.625" | 3.000" | 0.136" - 0.177" |
| 1-3/4" | 1.875" | 3.375" | 0.280" |
| 3" | 3.125" | 5.500" | 0.340" |
Product Tags:
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A307 1" Flat Spring Washers Black Oxide F436 Flat Washers With Structural Bolts Images
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