Brass Fastener Standards
RKIC Group manufactures brass fasteners to all major international standards. Use this reference guide to identify the correct standard for your market and application.
DIN Standards (German Institute for Standardization)
DIN standards are widely used across Europe, Asia and global markets. Most DIN fastener standards have been harmonised with ISO equivalents.
| DIN No. | Description | ISO Equivalent | Product |
|---|---|---|---|
| DIN 931 | Hex bolt — partially threaded | ISO 4014 | Hex Bolts |
| DIN 933 | Hex bolt — fully threaded | ISO 4017 | Hex Bolts |
| DIN 934 | Hex nut — standard | ISO 4032 | Hex Nuts |
| DIN 985 | Hex nyloc nut | ISO 7042 | Lock Nuts |
| DIN 125 | Flat washer — Form A | ISO 7089 | Washers |
| DIN 127 | Spring lock washer | ISO 7089 | Washers |
| DIN 912 | Socket cap screw | ISO 4762 | Screws |
| DIN 963 | Countersunk slotted screw | ISO 2009 | Screws |
| DIN 975 | Threaded rod / stud | — | Studs |
| DIN 7984 | Low head socket cap screw | — | Screws |
ASTM Standards (American Society for Testing and Materials)
ASTM standards are required for USA and North American markets. RKIC Group manufactures to ASTM B16 and related brass material standards.
| ASTM No. | Description | Product |
|---|---|---|
| ASTM B16 | Free-cutting brass rod, bar, shapes | All machined fasteners |
| ASTM B124 | Brass forgings | Forged fasteners |
| ASTM B36 | Brass sheet, strip, plate | Flat washers |
| ASTM F467 | Non-ferrous nuts | Brass nuts |
| ASTM F468 | Non-ferrous bolts and screws | Brass bolts, screws |
ISO Standards (International Organization for Standardization)
ISO standards apply globally and are the basis for most modern fastener specifications.
| ISO No. | Description | DIN Equivalent | Product |
|---|---|---|---|
| ISO 4014 | Hex bolt — partially threaded | DIN 931 | Hex Bolts |
| ISO 4017 | Hex bolt — fully threaded | DIN 933 | Hex Bolts |
| ISO 4032 | Hex nut — style 1 | DIN 934 | Hex Nuts |
| ISO 4033 | Hex nut — style 2 | DIN 934 | Hex Nuts |
| ISO 7089 | Flat washer — 200HV | DIN 125 | Washers |
| ISO 7090 | Flat washer — 300HV | DIN 125 | Washers |
| ISO 4762 | Socket cap screw | DIN 912 | Screws |
| ISO 7045 | Pan head Phillips screw | DIN 7985 | Screws |
BS Standards (British Standards Institution)
BS standards are used in the UK and Commonwealth markets. Most have been harmonised with ISO standards.
| BS No. | Description | Product |
|---|---|---|
| BS 1083 | Precision hex bolts and nuts | Hex Bolts, Nuts |
| BS 1769 | Brass machine screws | Machine Screws |
| BS 4183 | Brass washers | Washers |
| BS 2779 | BSP pipe thread fittings | Pipe Fittings |
Frequently Asked Questions
Does RKIC Group supply test certificates with standard-compliant fasteners?
Yes. We provide material test reports (MTR), dimensional inspection certificates and ISO 9001:2015 quality certificates with all orders.
Can you manufacture to a standard not listed here?
Yes. RKIC Group can manufacture to customer-specified standards including JIS, NF, and custom drawings. Contact our technical team.
Need Technical Assistance?
Our technical team is available Mon–Fri, 9AM–6PM for fastener selection and application engineering.