Hex head takes a 7mm wrench / socket. These have a variety of universal uses and replace factory GM part numbers 11503892 and 11500434.
226800 1/2" NPT Edelmann Hex Head Pipe Plug Brass 3/8" Female Hex Head
Snap on USA 4A1 Mini Stubby 1/8 In SAE Allen Hex Head Driver Amber Rare 1.5 Inch
22021 SPX POWER TEAM 5/16-24 UNF Hex Head Cap Screw for 1024-1027 Pullers (BN2)
Durable Hex Head Wheel Alignment Guides - 2PCS M14x1.5 Stainless Steel Tools
S.U.R.&R BB07 M7 x 1.0 Brake Bleeder Screws, Alloy Steel, Hex Head, Set of 5
Chemical Guys HEX_3KIT_5 - Hex-Logic 5.5" Buffing Pad Sampler Kit