Hexagonal head nipples allow to take higher torque without damaging the four spans of the nipple. Because truing is done from the head side that has a larger diameter, it can take more pressure. Hexagonal nipples are offered in 12 and 14mm.
Weight: (64 pcs x 260 mm lg) 272 g
Quality: AISI 302
Strength on middle section: 1600 N/mm2
Weight: (64 pcs x 260 mm lg) 231 g
Quality: Special stainless steel
Strength on middle section: 3040 N/mm2