Product Description
M7 × 1.0mm property class 8.8 zinc-plated steel hexagon-head set screws, fully threaded and manufactured to the traditional DIN 933 / current ISO 4017 dimensional pattern.
These high-tensile metric set screws feature a conventional external hexagon head and a full metric coarse thread extending along the usable length beneath the head. The less-common M7 diameter is used in selected automotive, motorcycle, machinery and restoration applications where M6 or M8 fasteners are not suitable.
- Thread size: M7
- Thread pitch: 1.0mm metric coarse
- Threading: Fully threaded
- Available lengths: 16mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 60mm and 70mm
- Head style: External hexagon head
- Width across flats: Approximately 11mm
- Head height: Approximately 4.8mm
- Recommended spanner or socket size: 11mm
- Material: High-tensile steel
- Property class: 8.8
- Finish: Zinc plated
- Traditional standard: DIN 933
- Current international standard: ISO 4017
- British adoption: BS EN ISO 4017
- Pack sizes available: 1, 5, 10, 20, 50, 100, 250, 500 and 1000
These M7 hexagon-head set screws are suitable for automotive and motorcycle repairs, classic vehicle restoration, machinery, brackets, equipment assembly, fabrication and general engineering applications.
The standard M7 × 1.0mm metric coarse thread must be used with a corresponding M7 × 1.0mm nut, threaded insert or tapped hole. M7 is a less-common metric diameter and is not interchangeable with M6, M8 or other thread sizes.
The fully threaded set-screw construction provides thread engagement along the usable length beneath the head. This makes the screws suitable for assemblies with varying material thicknesses and applications where a plain unthreaded shank is not required.
Property class 8.8 is a high-tensile steel fastener grade with a nominal tensile strength of approximately 800 N/mm². The second figure indicates a nominal yield-strength ratio of 0.8, giving a nominal yield strength of approximately 640 N/mm².
Correct tightening torque depends on the joint design, lubrication, thread condition, mating material, washer arrangement and required clamp load. Generic torque figures should not be applied without checking the requirements of the specific assembly.
The external hexagon head is installed using a correctly fitting 11mm spanner or socket. Ensure the tool is seated fully across the flats before applying torque to reduce the risk of rounding or damaging the head.
The zinc-plated finish provides improved corrosion resistance compared with untreated self-colour steel and is suitable for many indoor and sheltered outdoor applications. It is not normally recommended for prolonged exposure to marine, coastal or highly corrosive environments.
Hexagon set-screw length is measured from directly beneath the head to the end of the screw. The external hexagon head is not included in the stated length.
Please note: DIN 933 is the traditional product designation, while ISO 4017 is the current international dimensional standard and BS EN ISO 4017 is the corresponding British adoption. Dimensions and specifications are intended as a guide only and may vary within permitted manufacturing tolerances. Check the fastener where fit, strength or dimensions are critical.
| A | B | C | D | E |
| 7mm | 16mm | 11mm | 4.8mm | 1 |
| 7mm | 20mm | 11mm | 4.8mm | 1 |
| 7mm | 25mm | 11mm | 4.8mm | 1 |
| 7mm | 30mm | 11mm | 4.8mm | 1 |
| 7mm | 35mm | 11mm | 4.8mm | 1 |
| 7mm | 40mm | 11mm | 4.8mm | 1 |
| 7mm | 45mm | 11mm | 4.8mm | 1 |
| 7mm | 50mm | 11mm | 4.8mm | 1 |
| 7mm | 60mm | 11mm | 4.8mm | 1 |
| 7mm | 70mm | 11mm | 4.8mm | 1 |
Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.
