Both of the screws and springs are made of stainless steel, stable, durable and corrosion resistant. 6 pieces screws and 6 pieces springs.
MUSICLILY Pro 6 Inline Single Pin Guitar Locking Tuners Square SQ Nickel
Musiclily Pro Gold 6 Sets 10mm Bushing & 14mm Washer For Guitar Tuning Pegs Head
Musiclily Pro Black 6 Inline Sealed Locking Guitar Tuning Pegs Machine Heads Set
Musiclily Pro Nickel 6 Inline Vintage Locking Tuning Machine For Strat TL Guitar
Musiclily Pro R15T Nickel 6 Inline 14:1 Semi Closed Vintage Locking Tuning Pegs
Musiclily Pro Chrome 6 Inline Sealed Locking Guitar Tuning Pegs Machine Head Set