Hiro Seiko has released lightweight screw kits for Xray, Tamiya, Yokomo and Schumacher touring cars. Available for the Xray T4 2014, Tamiya TRF418 and TB-04 Pro, Yokomo BD7 2014 and Schumacher Mi5, these aluminium and titanium combined sets save between 22g and 31g. The Titanium sets only save you 16g to 24.5g.

#69796 T4 2014 Titanium Hex Socket Screw Set
#69797 T4 2014 Titanium & Aluminium Hex Socket Screw Set [Orange]
#69798 TB-04 PRO Titanium Hex Socket Screw Set
#69799 TB-04 PRO Titanium & Aluminium Hex Socket Screw Set [T-Blue]
#69800 TRF 418 Titanium Hex Socket Screw Set
#69801 TRF 418 Titanium & Aluminium Hex Socket Screw Set [T-Blue]
#69802 Mi5 Titanium & Aluminium Hex Socket Screw Set [Purple]
#69804 BD7 2014 Titanium Hex Socket Screw Set
#69805 BD7 2014 Titanium & Aluminium Hex Socket Screw Set [Y-Blue]
#69806 BD7 2014 Titanium & Aluminium Hex Socket Screw Set [S-Black]

Source: Hiro Seiko