Stud bolts with matched heavy hex nuts
    Nickel-copper alloy

    Monel 400 Stud Bolts

    Alloy 400 stud bolts to ASTM B164 for seawater, hydrofluoric acid and brackish service, quoted buy-to-order with traceable records.

    BUY-TO-ORDER SUPPLYLEAD TIME QUOTED PER RFQEN 10204 3.1 / 3.2 RECORDS
    GRADE OVERVIEW

    Alloy 400 stud bolts, specified correctly.

    Alloy 400 is a nickel-copper alloy with good resistance to seawater, brackish water and hydrofluoric acid, widely used in marine and HF alkylation service.

    Monel is a trademark of Special Metals. EMG supplies to UNS N04400 and your stated specification.

    View the material reference
    GRADE
    ASTM B164
    UNS / TYPE
    UNS N04400
    MATCHED NUT
    Alloy 400 heavy hex nuts
    SIZES
    1/4"–6" · M5–M150

    Reference information only. Your specification and the supplied certificates govern; no stock or equivalence is implied.

    WHERE IT IS SPECIFIED

    Typical applications

    HF alkylation

    Refinery units handling hydrofluoric acid.

    Marine

    Seawater pumps, valves and fittings.

    Chemical

    Alkali and brine process bolting.

    WHAT TO PUT ON YOUR RFQ

    Quoted right the first time.

    01

    Size & length

    Diameter from 1/4" to 6" or M5 to M150, thread form (UNC/8UN or metric), and length measured per ASME B16.5 / B16.47 or your drawing for Alloy 400.

    02

    Nuts, washers & coating

    Specify matched heavy hex nuts, through-hardened washers and any coating, such as Xylan/PTFE, so the kit is quoted as one traceable package.

    03

    Records & inspection

    State EN 10204 3.1 or 3.2, PMI, hardness or impact testing and any project ITP so certificates are confirmed before order.

    QUESTIONS

    Alloy 400 FAQs

    REQUEST A QUOTE

    Send your Alloy 400 requirement.

    Send sizes, quantities, nuts, coating, certificates and required date, or attach a line list or drawing. EMG confirms sourcing, records and lead time against your RFQ.

    Sizes & lengths

    Diameter, thread, length and quantity per line.

    Grade & nuts

    ASTM B164 with Alloy 400 heavy hex nuts.

    Records

    EN 10204 3.1 / 3.2, PMI and testing as specified.