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This is a solid clean pair of torsion bar adjuster screws that would be correct fot a 914-6. The early screws had a female hex for an Allen wrench. Most got stripped or distorted internally.
These were replated in yellow zinc to reduce corrosion.
They should be installed with a sealant to prevent them backing out.
I suggest blue Loctite or comparable sealent.
$30 shipped.