How to open M1A1 hinge screw

[bar28]

Does anyone know good and safe way, how can i open the long bolt from my M1A1 folding stock? It's extremely tight and i don't want destroy the bolt head completely. All advices are welcome.
M1A1 is original early model from 1943 (6-43) sn #471xxx. Woodparts are also first type

Information

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[shadycon]

Are you trying to remove the hinge bolt? Use some penatrating oil on threads and let sit over night and use a screwdriver that fits the slot "tight". Gunsmith bits are best, hollow ground, they hold better with less slipping. Good luck.

[frankderrico]

shadycon has it right. Gunsmith srew drivers are a must for working on rifles and pistols. Hold it or put it in something solid. Use lots of WD40 or the like, then a little back and forth on the srew until it starts. More oil and repeat back and forth. I would do it over and over. It will loosen up. Takes time so be patient.....Frank

[bar28]

Thank you very much from your advices. Is this gunsmith screw driver different than normal tool? If so, i would like to buy it somewhere.

When i bought my M1A1 (early model in 1943) carbine, this long bolt head wasn't perfect shape. If anyone would know, where i can find original spare part screw for it, it would be great. I have thought to replace this screw with "new" original one. Northridge has those bolts, but they are quite pricey...near over $80.

[shadycon]

Gunsmith screwdrivers; Wallmart sells cheap so called sets around $10.00. It consists of a handle and removable hollow ground bits.It is so-so but better than normal flat screwdrivers. A good set cost around $80.00. You can check with L&S Supply for a replacement screw. They list at $15.00. 651-773-9972. GK