I think that that screw is a Pan Head Drilled Spanner screw 4-40 3/8" long.
McMaster Carr (404) 346-7000 has them in Stainless Steel @ $11.83 (5 yr old price) for pack of 50 They also have the Spanner Screw Deiver Bit for $1.65
part# 94066A108
They state in the catalog that they may be avalable in zinc coated steel ask when you call.
Doc may have some Blue ones.
Ed Reimbold
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Ed Reimbold I Need:
For my 1936 P-08 Mag #5800 will trade Mag Al Stamped Blue #6859 k Straight Eagle 655 & #3502 n+St Eagle 63
For my 1917 Artillary Wood Mag #9220 I have #3392 f +
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