Processing Minimum and Maximum Sizes

Reference this chart for the minimum and maximum part sizes for our processing services.

Min/Max Part Sizes for Anodizing

Anodizing Guidelines
Material Thickness Min Flat Part Size Max Flat Part Size
5052 Aluminum .040″ N/A N/A
.063″ 1″ x 3″ 23″ x 23″
.080″ 1″ x 3″ 23″ x 23″
.090″ 1″ x 3″ 23″ x 23″
.100″ 1″ x 3″ 23″ x 23″
.125″ 1″ x 3″ 23″ x 23″
.187″ 1″ x 3″ 23″ x 23″
.250″ 1″ x 3″ 23″ x 23″
.375″ 1″ x 3″ 23″ x 23″
.500″ 1″ x 3″ 23″ x 23″
6061 Aluminum .040″ N/A N/A
.063″ 1″ x 3″ 23″ x 23″
.080″ 1″ x 3″ 23″ x 23″
.125″ 1″ x 3″ 23″ x 23″
.250″ 1″ x 3″ 23″ x 23″
.375″ 1″ x 3″ 23″ x 23″
.500″ 1″ x 3″ 23″ x 23″
7075 Aluminum .125″ 1″ x 3″ 23″ x 23″
.190″ 1″ x 3″ 23″ x 23″
.250″ 1″ x 3″ 23″ x 23″

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We proudly use hardware by PEM

Flush stud, M8 x 1.25, .472" Zinc plus Clear Chromate

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 0.378″
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″

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We proudly use hardware by PEM

Flush Standoff, 4-40, .250" Zinc plus Clear Chromate

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 0.230″
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

Flush Standoff, 4-40, .250" Passivated

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 0.230″
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″