RapidBoltWater & wastewater
Treatment-plant piping and equipment flanges.
Austenitic stainless (304)
ASTM A194 Grade 8 Heavy Hex Nuts
ASTM A194 Grade 8 (304 stainless) heavy hex nuts for A193 B8 studs, quoted buy-to-order with anti-galling and certification options.
SUPPLY
Buy-to-order
LEAD TIME
Quoted per RFQ
RECORDS
EN 10204 3.1 / 3.2
GRADE OVERVIEW
A194 Grade 8 nuts, specified correctly.
Grade 8 is a 304 austenitic stainless nut, the usual companion for ASTM A193 B8 studs in corrosive and food, chemical or water-treatment service.
Stainless-on-stainless threads can gall. Specify lubrication, coating or strain-hardened variants (8A, strain-hardened) where your design requires them.
- GRADE
- ASTM A194 / ASME SA-194 Grade 8
- MATERIAL
- AISI 304 austenitic stainless steel
- MATCHED STUD
- ASTM A193 B8 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 SPECIFIED01 02 03
Typical applications
Chemical processing
Mildly corrosive process connections.
Food & pharma
Stainless plant where 304 bolting is specified.
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 B8 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 Grade 8 FAQs
REQUEST A QUOTE
Send your A194 Grade 8 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
