R-TECH 524375 Hex Threaded F-F Spacers Brass M4 15mm - Pack Of 25

R-TECH Hexagonal M4 Threaded F-F Brass Spacers - 7mm AF - R-TECH 524375, These 5mm AF hexagonal female to female spacers have M4 tapped holes in both ends and are threaded throughout their entire length. R-TECH 524375 Hex Threaded F-F Spacers Brass M4 15mm - Pack Of 25

Price: 8.78 from Rapid Online Rapid Electronics Ltd.