Stainless Steel Grade 4.8 8.8 10.9 Slotted Hexagon Screw Cross Recessed Hexagon Bolt Slotted Bolt | Standard | As per drawing |
| Diameter | M3-M12 |
| Length | 6-120mm |
| Type | Slotted Hex Head |
| Material | Stainless steel |
| Package | Plastic bag, Boxes and cartons, Pallets, Customized |
| Price terms | EXW, FOB, CIF, etc. |
| Payment terms | T/T, Paypal, L/C, Western union, etc. |
| Certifications | ISO 9001:2015 |
| Note | Free sample but freight cost is paid by customers(when sample is in stock);
Sample fee(when samples need to be customized) |
We need more detail as follow. This will allow us to give you an accurate quotation.
Before offer the price,get the quote simply by completing and submitting the form below:
• Product:__
• Measure: _______(Inside Diameter) x_______(Outside Diameter)x_______(Thickness)
• Order Quantity: _________________pcs
• Surface treatment: _________________
• Material: _________________
• When do you need it by? __________________
• Where to Shipping: _______________ (Country with postal code please)
• Email your drawing ( jpeg, png or pdf, word) with minimum 300 dpi resolution for good clarity.
Products Details
1. Size and Drawing 
| Screw Thread | M3 | M4 | M5 | M6 | M8 | M10 | M12 |
| d |
| P | Pitch | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 |
| n | Nominal Size | 0.8 | 1.2 | 1.2 | 1.6 | 2 | 2.5 | 3 |
| min | 0.86 | 1.26 | 1.28 | 1.66 | 2.06 | 2.56 | 3.06 |
| max | 1 | 1.51 | 1.51 | 1.91 | 2.31 | 2.81 | 3.31 |
| t | min | 0.7 | 1 | 1.2 | 1.4 | 1.9 | 2.4 | 3 |
| Thread Size | 1# | 2# | 3# | 4# | 5# | 6# | 7# | 8# | 10# |
| d | | | | | | | | | |
| d | Nominal Size | 0.073 | 0.086 | 0.099 | 0.112 | 0.125 | 0.138 | 0.151 | 0.164 | 0.19 |
| PP | UNC | 64 | 56 | 48 | 40 | 40 | 32 | - | 32 | 24 |
| s | Regular head min | 0.125 | 0.125 | 0.188 | 0.188 | 0.188 | 0.25 | 0.25 | 0.25 | 0.312 |
| Regular head max | 0.12 | 0.12 | 0.181 | 0.181 | 0.181 | 0.244 | 0.244 | 0.244 | 0.305 |
| Large head min | - | - | - | 0.219 | 0.25 | - | - | 0.312 | - |
| Large head max | - | - | - | 0.213 | 0.244 | - | - | 0.305 | - |
| e | Regular head min | 0.134 | 0.134 | 0.202 | 0.202 | 0.202 | 0.272 | 0.272 | 0.272 | 0.34 |
| Large head min | - | - | - | 0.238 | 0.272 | - | - | 0.34 | - |
| k | max | 0.044 | 0.05 | 0.055 | 0.06 | 0.07 | 0.093 | 0.093 | 0.11 | 0.12 |
| min | 0.036 | 0.04 | 0.044 | 0.049 | 0.058 | 0.08 | 0.08 | 0.096 | 0.105 |
| n | max | - | - | - | 0.039 | 0.044 | 0.048 | 0.048 | 0.054 | 0.06 |
| min | - | - | - | 0.031 | 0.035 | 0.039 | 0.039 | 0.045 | 0.05 |
| t | max | - | - | - | 0.036 | 0.042 | 0.046 | 0.054 | 0.066 | 0.072 |
| min | - | - | - | 0.025 | 0.03 | 0.033 | 0.04 | 0.052 | 0.057 |
| Thread Size | 12# | 14# | 1/4. | 5/16. | 20# | 24# | 3/8. | 7/16. | 1/2. |
| d | | | | | | | | | |
| d | Nominal Size | 0.216 | 0.242 | 0.25 | 0.3125 | 0.32 | 0.372 | 0.375 | 0.4375 | 0.5 |
| PP | UNC | 24 | - | 20 | 18 | - | - | 16 | 14 | 13 |
| s | Regular head min | 0.312 | 0.375 | 0.375 | 0.5 | 0.5 | 0.562 | 0.562 | 0.625 | 0.75 |
| Regular head max | 0.305 | 0.367 | 0.367 | 0.489 | 0.489 | 0.551 | 0.551 | 0.61 | 0.735 |
| Large head min | 0.375 | 0.438 | 0.438 | - | - | - | - | - | - |
| Large head max | 0.367 | 0.428 | 0.428 | - | - | - | - | - | - |
| e | Regular head min | 0.34 | 0.409 | 0.409 | 0.545 | 0.545 | 0.614 | 0.614 | 0.682 | 0.82 |
| Large head min | 0.409 | 0.477 | 0.477 | - | - | - | - | - | - |
| k | max | 0.155 | 0.19 | 0.19 | 0.23 | 0.23 | 0.295 | 0.295 | 0.348 | 0.4 |
| min | 0.139 | 0.172 | 0.172 | 0.208 | 0.208 | 0.27 | 0.27 | 0.321 | 0.367 |
| n | max | 0.067 | 0.075 | 0.075 | 0.084 | 0.084 | 0.094 | 0.094 | - | - |
| min | 0.056 | 0.064 | 0.064 | 0.072 | 0.072 | 0.081 | 0.081 | - | - |
| t | max | 0.093 | 0.101 | 0.101 | 0.122 | 0.122 | 0.156 | 0.156 | - | - |
| min | 0.077 | 0.083 | 0.083 | 0.1 | 0.1 | 0.131 | 0.131 | - | - |
2. Selection of bolt material
Further information: Screw § Mechanical classifications
Regarding the requirement of the strength and circumstance, there are several types of material can be used for the Fastener Material Selection.[6]
- Steel Fasteners (Grade 2,5,8) - the level of strength
- Stainless Steel Fasteners (Martensitic Stainless Steel, Austenitic Stainless Steel),
- Bronze and Brass Fasteners - Water proof usage
- Nylon Fasteners - it is used for the light material and water proof usage.
- In general, Steel is the most commonly used material of all fasteners (90%) or more.
