Fast Delivery for 1300C and Low Load Strength

Q: I’m looking to purchase some ¼-20 bolts/nuts/washers that will be suitable to fasten metal plate together at 1,300C.  The fasteners need to last at least 4 minutes at this temperature but preferably longer. The load on the bolts will be very low.

A: I think there are a couple fast delivery options.

#1 – Inconel 600.  Although this is limited in long term temp resistance to ~1100 C… The short time at temperature should allow it to perform OK.  I’m sure 4 mins is OK.  You may want to use a high temp anti-seize if these are disassembled often (https://www.extreme-bolt.com/store/anti-seize-lubricant/extreme-anti-seize-lubricant)

#2 – Ceramic.  This material is exceptionally resistant to temperature and will have no problems at 1300C for long durations.  However, ceramic screws are not as strong or tough as metals.

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