Hex spacer 1/4 x 3-1/8 inches #6-32 tap
Ships from US and is sold by Marco Specialties$2.98
Hex spacer 1/4 x 3-1/8 inches #6-32 tap
#254-5008-19
Hex spacer Post 3-1/8 x 1/4 inches #6-32 tap both ends.
Reference:
0.7 oz