RapidBolt
Coastal & marine
Seawater-exposed piping and structures.
Austenitic stainless (316)
ASTM A194 Grade 8M Heavy Hex Nuts
ASTM A194 8M (316 stainless) heavy hex nuts for A193 B8M studs in marine and chloride service, quoted buy-to-order with full records.
SUPPLY
Buy-to-order
LEAD TIME
Quoted per RFQ
RECORDS
EN 10204 3.1 / 3.2
GRADE OVERVIEW
A194 8M nuts, specified correctly.
Grade 8M is a 316 stainless nut whose molybdenum content improves chloride pitting resistance over 304, making it a common choice for marine and coastal plant.
Specify 8M or 8MA, any strain-hardening requirement and anti-galling treatment so the nut matches the stud class.
- GRADE
- ASTM A194 / ASME SA-194 Grade 8M
- MATERIAL
- AISI 316 molybdenum-bearing stainless steel
- MATCHED STUD
- ASTM A193 B8M stud bolts
- SIZES
- 1/4"–6" · M5–M150
- FORM
- Heavy hex, to ASME B18.2.2 or your drawing
Reference information only. Your specification and the supplied certificates govern; no stock or equivalence is implied.
WHERE IT IS SPECIFIED
Typical applications
WHAT TO PUT ON YOUR RFQ
Quoted right the first time.
Size & thread
Nominal size from 1/4" to 6" or M5 to M150, thread pitch (UNC/8UN or metric) and quantity per line.
Matching studs & coating
Pair with ASTM A193 B8M stud bolts; state coating such as zinc, HDG or Xylan/PTFE and any oversize tapping.
Records & testing
EN 10204 3.1 or 3.2, hardness, proof load, PMI or impact testing as your specification requires.
QUESTIONS
A194 8M FAQs
REQUEST A QUOTE
Send your A194 8M nut requirement.
Send sizes, quantities, matched studs, coating, certificates and required date, or attach a line list or drawing. EMG confirms sourcing, records and lead time against your RFQ.
ISO 9001:2015 quality-managed supply
RELATED GRADES
