Finding reliable metric carriage bolt suppliers helps ensure projects—from DIY furniture to machinery assemblies—finish with dependable fasteners. This article spotlights top suppliers offering standard DIN603 carriage bolts in common metric sizes, highlighting materials, anti-rotation features, and kit options. Read on to compare options and select bolts that fit your application, whether woodworking, metalwork, or equipment installation.
Summary of Selected Products
| Product | Brand | Key Feature | Link |
|---|---|---|---|
| 10PCS M6x80mm Carriage Bolts | BuleVina | 304 stainless steel, anti-rotation square neck | View |
| M8-1.25 x 20mm (10 Sets) Carriage Bolt | AOESIN | DIN603, hex nut included | View |
| YXQ 8Pcs M6x16mm Carriage Bolts | YXQ | DIN603, 304 stainless | View |
| Rustark 60Pcs Carriage Bolts Kit | Rustark | 5 sizes, stainless steel with nuts & washers | View |
| Hillman 45916 Metric Carriage Bolt (M10) | Hillman | Zinc-plated, self-locking head | View |
10PCS M6x80mm Carriage Bolts By BuleVina
Product overview emphasizes standard M6 thread with 80mm length and a square neck designed to lock into wood or metal, reducing bolt spin during tightening. Bolts are described as 304 stainless steel for strength and corrosion resistance, with an anti-rotation feature under the round head to simplify installation using a single wrench. Dimensions confirm a 16mm head diameter and 3.8mm head thickness, with a square neck height of 4.6mm. While the listing notes to confirm dimensions before purchase, the design targets common woodworking and machinery assembly tasks where self-locking performance is beneficial.
M8-1.25 x 20mm Carriage Bolt (10 Sets) By AOESIN
Key details include thread size M8-1.25 with coarse UNC thread and included hex nut DIN934. Head diameter ranges 19.35–20.65mm and head height 4.12–4.88mm, with neck height 4.4–5.6mm. The product is positioned for broad use across home, office appliances, aluminum profiles, communications gear, ships, and DIY projects. The kit’s explicit dimensions emphasize compatibility with square-neck and hex nut components for secure installations in assemblies where anti-rotation and robust hold are critical.
YXQ 8Pcs M6x16mm Carriage Bolts
YXQ lists 304 stainless steel construction with a 16mm under-head length and an M6 x 11mm thread portion (DIN603 standard). The bolts are described as round-head with square neck design to resist spinning and a total length suited for light-to-moderate fastening tasks. The compact 15.5 x 19mm size ensures suitability for small projects or ready-to-assemble furniture components, where simple threading and anti-rotation features improve alignment and installation efficiency.
Rustark 60Pcs 5 Sizes 304 Stainless Steel Bolts Kit
Rustark offers a diverse kit with five sizes of 304 stainless steel carriage bolts, including M6 and M8 options, plus accompanying nuts and washers. The set emphasizes corrosion resistance and durability for machinery, home appliances, and various construction tasks. The square-neck design is highlighted as anti-theft friendly and self-locking when used with square holes. A comprehensive mix of sizes and hardware ensures broad applicability across projects requiring various bolt lengths and accessories.
Hillman 45916 Metric Carriage Bolt (M10)
Hillman’s M10 carriage bolts are zinc-plated for steel and wood applications, offering a self-locking square-neck underside to resist rotation during tightening. The product is marketed in a six-pack, with a flat, smooth head that minimizes the need for washers in certain assemblies. This option is positioned for wood-to-wood or wood-to-metal fastening scenarios, where a clean head appearance and reliable seating are important.
M12-1.75 x 40mm Carriage Bolts By AOESIN
AOESIN’s M12 carriage bolts feature M12-1.75 thread size, 29.35–30.65mm head diameter, and a neck height range intended for use in heavy-duty assemblies. The product is marketed for broad industrial applications from ships to DIY crafts, emphasizing compatibility with DIN603 standards and a robust stainless steel construction for long-term service in challenging environments. The listing notes broad usage across machinery installations and equipment assembly.
Buying Guide: Key Purchase Considerations
- Material and corrosion resistance: For outdoor or humid environments, stainless steel (304 or higher) offers better rust and wear resistance than plain carbon steel.
- Head style and under-head geometry: Round heads with square necks help prevent rotation; ensure the neck height and under-head length fit your hole and surface requirements.
- Thread size and length: Match to the receiving nut or tapped hole; longer bolts may provide more grip but require deeper holes or spacings.
- DIN603 vs other standards: DIN603 is common for carriage bolts; verify the standard to guarantee compatibility with existing hardware.
- Kit vs individual bolts: Kits add versatility for multiple projects; individual bolts are ideal when you know exact sizes you need.
- Included hardware: Some sets include nuts and washers; check compatibility and size to avoid mismatches.
- Installation tools: Anti-rotation features reduce the need for secondary tools when tightening—consider whether you’ll need a wrench or hex key for installation.
- Finish and coating: Zinc plating, black oxide, or other coatings affect aesthetics and corrosion resistance; select based on environment and appearance needs.
- Quantity and variety: For ongoing projects, multi-size kits save time; for single tasks, fewer, purpose-built bolts may be more cost-effective.
- Quality certifications: Look for supplier warranties or material certifications if your project requires high reliability.