Hex Bolts, Grade C conform to ISO 4016. As bolts, they are specified by the dimensions in the table below; this page also covers materials, finishes and typical uses.
What Are Hex Bolts, Grade C?
Hex Bolts, Grade C are bolts defined by ISO 4016. They are selected by thread size and the dimensional characteristics shown below, and are available in a range of materials and finishes to suit the application and environment.
Dimensions & Specifications (ISO 4016)
| Size | Pitch (mm) | Width across flats s (mm) | Width across corners e min (mm) | Head height k (mm) | Product grade | Reference standard |
|---|---|---|---|---|---|---|
| M5 | 0.8 | 8.0 | 8.63 | 3.35 | Grade C | ISO 4016 / DIN 601 |
| M6 | 1.0 | 10.0 | 10.89 | 4.15 | Grade C | ISO 4016 / DIN 601 |
| M8 | 1.25 | 13.0 | 14.2 | 5.45 | Grade C | ISO 4016 / DIN 601 |
| M10 | 1.5 | 17.0 | 18.72 | 6.58 | Grade C | ISO 4016 / DIN 601 |
| M12 | 1.75 | 19.0 | 20.88 | 7.68 | Grade C | ISO 4016 / DIN 601 |
| M14 | 2.0 | 22.0 | 24.49 | 9.25 | Grade C | ISO 4016 / DIN 601 |
| M16 | 2.0 | 24.0 | 26.75 | 10.18 | Grade C | ISO 4016 / DIN 601 |
| M18 | 2.5 | 27.0 | 29.56 | 11.72 | Grade C | ISO 4016 / DIN 601 |
| M20 | 2.5 | 30.0 | 33.53 | 12.72 | Grade C | ISO 4016 / DIN 601 |
| M22 | 2.5 | 32.0 | 35.72 | 14.5 | Grade C | ISO 4016 / DIN 601 |
| M24 | 3.0 | 36.0 | 39.55 | 15.35 | Grade C | ISO 4016 / DIN 601 |
| M27 | 3.0 | 41.0 | 45.2 | 17.92 | Grade C | ISO 4016 / DIN 601 |
| M30 | 3.5 | 46.0 | 50.85 | 19.75 | Grade C | ISO 4016 / DIN 601 |
| M36 | 4.0 | 55.0 | 60.79 | 23.35 | Grade C | ISO 4016 / DIN 601 |
| M42 | 4.5 | 65.0 | 71.3 | 27.05 | Grade C | ISO 4016 / DIN 601 |
| M48 | 5.0 | 75.0 | 82.6 | 31.07 | Grade C | ISO 4016 / DIN 601 |
Materials & Finishes
Common materials include carbon steel (typically zinc plated or hot-dip galvanized), alloy steel in property classes 8.8, 10.9 and 12.9, and stainless steel A2 (304) or A4 (316) for corrosion resistance. Specify the material, property class and surface finish appropriate to your load and environment.
Typical Applications
Structural steelwork, machinery, automotive and general assembly where high-strength, removable joints are required.
Related Fasteners
Pricing
Hex Bolts, Grade C are stocked and supplied to order. Pricing starts from approximately US$0.060 per piece for standard sizes in carbon steel; final pricing depends on size, material, finish and order quantity (MOQ applies). Request a quotation below for your exact specification.
Request a Quotation for Hex Bolts, Grade C
Tell us the size, material, finish and quantity you need for Hex Bolts, Grade C (ISO 4016) and our team will respond within one business day.