Fasteners for secure, flush fixing in DIY and light engineering tasks. Hard-wearing construction aims to stand up to indoor and outdoor use while keeping visible fixings tidy. Are these the right bolts to keep in a workshop or toolbox for reliable everyday repairs? The Generic Countersunk Head Screw DIN 7991 appears designed for that role.
⚡ At a Glance
- • Tensile Strength: High tensile steel Grade 10.9 with heat treatment for robust mechanical performance
- • Best for: DIY enthusiasts, hobbyists and light engineering tasks needing neat, reliable fixings
- • Not ideal for: Heavy structural or load-bearing applications that require specialised fasteners
Countersunk head bolts to DIN 7991, CNC-machined and heat-treated for strength. Suited to joining wood, plastic and light metals in a range of metric sizes.
Neat, flush finish – Thanks to the countersunk head geometry
Countersunk heads sit flush when driven into a pre-countersunk hole, allowing the screw head to align with the work surface. Socket drive recess accepts an Allen key for controlled tightening into the countersink.
A flush finish keeps visible surfaces tidy and reduces snagging on panels and fittings. Ideal where a discreet appearance matters, such as furniture or panel assemblies.
Reliable joint strength – With high tensile steel Grade 10.9 and heat treatment
Grade 10.9 steel undergoes heat treatment to increase yield and tensile properties, while precision CNC machining ensures consistent threads and head dimensions. The DIN 7991 designation confirms a countersunk, hexalobular or socket head form compliant with that standard.
Strong fastenings resist shearing and loosening under normal DIY and light engineering loads. Suitable for repeated use where mechanical reliability matters.
Ready supply for multiple jobs – Thanks to the bulk pack and size range
Available across common metric sizes from M4 to M10, with convenient pack quantities provided for routine maintenance and projects. Bulk purchasing reduces the need for frequent restocking.
Keeping a large pack on hand saves time during projects and ensures matching spares are available. Useful for frequent installers, makers and household toolkits.
✨ The 4 Key Reasons for Generic Countersunk Head Screw DIN 7991
- Countersunk head - Neat, flush installation on visible surfaces
- Socket (Allen) drive - Secure tightening with reduced cam-out risk
- Black finish - Discreet appearance that blends with fittings
- Bulk pack - Plenty of spares to cover multiple projects
📋 Technical Details at a Glance
- Category: Countersunk socket head screw
- Head type: Countersunk (CSK)
- Size: M5 x 16 mm (example size shown)
- Standard: DIN 7991
- Material: High tensile steel
❓ Frequently Asked Questions
Q: Are these suitable for outdoor use?
A: Yes, the description states suitability for both indoor and outdoor applications, with durable construction intended for such use.
Q: What sizes are available?
A: A wide range of metric sizes is available, typically from M4 to M10 as noted in the product description.
Q: How many bolts come in a pack?
A: The listing highlights a bulk quantity intended to provide spares for DIY and repair jobs; the product description references buying a larger pack to ensure spares are on hand.
🏆 Our Verdict
The Generic Countersunk Head Screw DIN 7991 is well suited to DIYers, workshop users and small-scale fabricators who need neat, reliable fastenings. Precision CNC machining, heat treatment and Grade 10.9 steel give strength and consistent fit for repeated use. Cost-conscious buyers benefit from the bulk pack and durable construction, which reduces repeat purchases and adds long-term value.
