Hex bolt(Partial thread(Coarse Stainless steel Unplated 8 X 75 Pitch 1.25
Generally, a bolt refers to a screw used together with a nut. The most representative type is the hex bolt, which has a regular hexagonal head and is tightened using a wrench or spanner.
It can be tightened more securely than slotted or cross recessed screws.
●Full Thread = A bolt in which the entire length below the head is threaded. (Generally used as a guideline for lengths of 30mm or less.)
●Partial Thread (medium bolt) = A bolt that is only threaded from the tip partway up the shank.
Partial Thread Calculation Method (approximate guideline)
L = up to 129 Nominal thread diameter × 2 + 6
L = 130 to 219 Nominal thread diameter × 2 + 12
L = 220 and above Nominal thread diameter × 2 + 25
Example: For an M10×250 partial thread bolt, since L (length) is 220 or more, the threaded portion is 10×2+25 = 45mm.
Thread Pitch & Hex Width Across Flats Reference Chart Hex Bolt Encyclopedia
It can be tightened more securely than slotted or cross recessed screws.
●Full Thread = A bolt in which the entire length below the head is threaded. (Generally used as a guideline for lengths of 30mm or less.)
●Partial Thread (medium bolt) = A bolt that is only threaded from the tip partway up the shank.
Partial Thread Calculation Method (approximate guideline)
L = up to 129 Nominal thread diameter × 2 + 6
L = 130 to 219 Nominal thread diameter × 2 + 12
L = 220 and above Nominal thread diameter × 2 + 25
Example: For an M10×250 partial thread bolt, since L (length) is 220 or more, the threaded portion is 10×2+25 = 45mm.
Thread Pitch & Hex Width Across Flats Reference Chart Hex Bolt Encyclopedia
Hot-dip galvanized coating has a large film thickness, and may not be compatible with other surface treatments.
In addition, even products with the same hot-dip galvanized finish may not be compatible if purchased from different sources.
In such cases, we may not be able to accept returns, so please be aware of this before proceeding with your purchase.
Product Details

- Hex bolt Partial thread (Coarse)
- Nominal thread diameter M8
- Length under head (ℓ) 75
- Coarse pitch 1.25
- Head height (k) Nominal 5.5
- Width across flats (s) Nominal 13
- Width across corners (e) Approx. 15
Hex bolt(Partial thread(Coarse Stainless steel Unplated 8 X 75 Pitch 1.25
| Stainless steel | Unplated | 8 X 75 | Individual sale | View Details |
|---|
Hex bolt(Partial thread(Coarse Stainless steel Unplated 8 X 75 Pitch 1.25 - Surface Finish Variants
| Material | Surface Treatment | Size | Individual Sale | View Details |
|---|---|---|---|---|
| Stainless steel | GB(Brown) | 8 X 75 | Individual sale | View Details |
| Stainless steel | BK(Black) | 8 X 75 | Individual sale | View Details |

