We are a leading manufacturer and distributor of hand fastening screws specializing in wing bolts and nuts.

NS Spring・NS Pin

SPRING FOR NUT BACK OFF PREVENTIION

  • Simple hand assembly to the bolt thread,
    Prevents nut falling off due to self loosening!!
  • Compact Design,
    Further tightening is possible without removing the NS Spring!
NS SPRING ASSEMBLY INSTRUCTIONS

CHARACTERISTICS

The spring ends bite into the wall of the thread preventing nut back off.
No tools required – easily assembled by hand. Reuse again and again.
Compact design fits inside the nut’s outside diameter.
*Stock items provided in plain finish. Custom finishes available.

BOLT SIZE(MM) MATERIAL
M8 SUS304 WPB
M10
M12
M14
M16
M20
BOLT SIZE(IN.) MATERIAL
W5/16 SUS304 WPB
W3/8
W1/2
W9/16
W5/8
W3/4

Inquiries on sizes and specials are welcome. Please feel free to contact us.

common_allow3 Leaflet download[PDF]

 

  • Hand assembly – no tools required
    With the NUT STOPPER PIN.
  • Simply insert the pin by hand!
    Will not fall out – hand removal only!!
SIZE RANGE(MM) SUITABLE HOLE SIZE(MM) MATERIAL
M8 ~ M10 M8 ~ M10
Φ 2.2
SUS304 WPB
M12 ~ M16 M12 ~ M16
Φ 4.2
M20 ~ M24 M20 ~ M24
Φ 5
SIZE RANGE(IN.) SUITABLE HOLE SIZE(IN.) MATERIAL
W5/16 ~ W3/8 W5/16 ~ W3/8
Φ 3/32
SUS304 WPB
W1/2 ~ W5/8 W1/2 ~ W5/8
Φ 11/64
W3/4 ~ W1 W3/4 ~ W1
Φ 13/64

Inquiries on sizes and specials are welcome. Please feel free to contact us.

common_allow3 Leaflet download[PDF]