Brass Machine Bolts - DIN 931 Standard | Precision Fasteners
High-quality brass machine bolts with hexagonal heads for industrial and commercial applications
Premium brass machine bolts manufactured to DIN 931/ISO 4014 standards. Available in M4-M36 sizes with metric threading. Corrosion-resistant, non-magnetic, ideal for marine, plumbing, and industrial applications.
Why Choose Brass Machine Bolts?
Hexagonal Head Design
Precision-machined hex heads provide secure grip for standard tools and even torque distribution during installation.
Partial Threading
DIN 931 specification with partially threaded shank for optimal clamping force and load distribution.
Marine-Grade Brass
Excellent resistance to saltwater corrosion, making them ideal for marine and coastal applications.
Non-Magnetic Properties
Safe for use around sensitive electronic equipment and in explosive atmospheres.
High Tensile Strength
Class 4.6 minimum strength rating with tensile strength up to 450 MPa.
Technical Specifications
| Standard | DIN 931, ISO 4014 |
| Size Range | M4 to M36 |
| Thread Length | Partial thread per DIN 931 |
| Material | Brass CuZn37, CuZn39 |
| Tensile Strength | 380-450 MPa |
| Head Type | Hexagonal (Hex Head) |
| Thread Type | Metric coarse (ISO standard) |
Materials
Available Sizes
Custom sizes available
Where It's Used
Discover how businesses across industries use our products to achieve their goals
Machinery & Equipment Assembly
ManufacturingEssential fasteners for securing machine components, motor mounts, and equipment assemblies where corrosion resistance is critical.
Marine & Shipbuilding
MarineIdeal for boat fittings, deck hardware, and marine equipment due to excellent saltwater corrosion resistance.
Plumbing Installations
PlumbingUsed for securing pipe brackets, fixtures, and equipment in water supply and drainage systems.
Trusted by Industries
MetalParks manufactures premium brass machine bolts to DIN 931 and ISO 4014 standards. Our machine bolts feature precision-cut hexagonal heads and partially threaded shanks, ideal for applications requiring strong, reliable connections in corrosion-prone environments.
Superior Engineering & Quality
Each brass machine bolt is manufactured from high-grade CuZn37 or CuZn39 brass alloys using advanced CNC machining processes. The hexagonal head design provides excellent grip for standard wrenches and sockets, while the partially threaded shank offers optimal load distribution.
Applications Across Industries
Our brass machine bolts are trusted in marine engineering, plumbing installations, electrical assemblies, and machinery manufacturing. The non-magnetic properties make them essential for electronic equipment and sensitive instrumentation.
Certifications & Standards
ISO 9001:2015
ISO 9001
Quality Management System
DIN 931
DIN 931
Hexagon head bolts - Partial thread
ISO 4014
ISO 4014
Hexagon head bolts - Product grades A and B
Frequently Asked Questions
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