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Relying on its superior tensile and yield strengths, 1075 spring steel is positioned as the essential material for spring, coil, and shim manufacturing. Our laser cut 1075 Blue Tempered Spring Steel (also known as Scaleless Blue Tempered Steel) is perfect for spring applications or where stiffness is required with minimal thickness.
Instant quote
A: .25″ x .375″
B: 13″ x 44″
Custom quote
C: 13″ x 56″
.015″ (.381mm)
1075 blue tempered spring steel is a type of high-carbon steel renowned for its exceptional resilience, strength, and durability. The “blue temper” refers to the process of heating the steel to a specific temperature and then cooling it rapidly to achieve optimal hardness and toughness. This steel is characterized by its ability to resist deformation and return to its original shape after being subjected to stress, making it ideal for applications requiring reliable spring properties.
1075 Blue Temper Spring Steel is a versatile steel that isn’t just for springs, clamps, and coils. It’s often used in blade-making as well. It’s able to hold its edge well and is receptive to sharpening. It also has much better workability and toughness than something with a higher carbon count (like 1095).
We guarantee awesome quality parts. If you’re not 100% happy, we’ll give you a refund or remake on the spot – no questions, no hassle.
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DUNS: 076773502x ITAR: M45162 CAGE: 97DK6 SAM: Upon Request
We proudly use hardware by PEM
Aluminum: 5052, 6061, 7075 Steel: Mild
| SKU | FH-M8-12 |
| Thread Size | M8 x 1.25 |
| Hole size in sheet (+0.003/-.0.000) | .315″ |
| Minimum sheet thickness | 0.094″ |
| Maximum sheet thickness | .347″ |
| Fastener material | Steel |
| Minimum distance hole C/L to edge or bend | .378″ |
| Minimum distance between two of the same hardware (CL to CL) | .567″ |
| Recommended panel material | Steel/Aluminum |
| Coating type | Zinc |
| Length | .472″ |
| Aluminum material ranges (5052, 6061, 7075) | 0.100″-0.250″ |
| Steel material ranges (CRS, HRPO, HR) | 0.104″-0.250″ |
We proudly use hardware by PEM
Aluminum: 5052, 6061, 7075 Steel: Mild, G30
| SKU | SO-440-8 |
| Thread Size | 4-40 x .250″ |
| Hole size in sheet (+0.003/-.0.000) | .168″ |
| Minimum sheet thickness | 0.040″ |
| Maximum sheet thickness | .125″ |
| Fastener material | Steel |
| Minimum distance hole C/L to edge or bend | .250″ |
| When determining the distance between two or more fasteners, you can calculate the distance by the formula, C/L to edge + 1/2 the diameter of the second mounting hole. | .345″ |
| Recommended panel material | Steel/Aluminum |
| Coating type | Zinc |
| Length | .250″ |
| Aluminum material ranges (5052, 6061, 7075) | 0.040″-0.125″ |
| Steel material ranges (CRS, HRPO, HR) | 0.048″-0.119″ |
We proudly use hardware by PEM
Stainless Steel: 304, 316
| SKU | SO4-440-8 |
| Thread Size | 440 |
| Hole size in sheet (+0.003/-.0.000) | .166″ |
| Minimum sheet thickness | 0.04″ |
| Maximum sheet thickness | .125″ |
| Fastener material | 400 Stainless Steel |
| Minimum distance hole C/L to edge or bend | .250″ |
| When determining the distance between two or more fasteners, you can calculate the distance by the formula, C/L to edge + 1/2 the diameter of the second mounting hole. Example shown with x2 of the same hardware. | .313″ |
| Recommended panel material | Stainless Steel |
| Coating type | Passivated |
| Length | .250″ |
| 304 Stainless Steel material ranges | 0.048″-0.125″ |
| 316 Stainless Steel material ranges | 0.060″-0.125″ |
