This configuration is not available. Make another selection.
M8X1.25 SEMS Steel 10.9 Metric Screw:
Socket Head + Flat Washer + Lock Washer
Flat Washer Dimensions: Outer Diameter 18mm / Thickness 1.6mm
Lock Washer Dimension Outer Diameter 14.3mm
Socket head SEMS screws combine a DIN 912 socket head screw with a set of captive (permanently attached) washers: one lock washer and one flat washer.
SEMS Screw Benefits:
- Saving time by eliminating assembly of individual components
- Easier to service and disassemble difficult-to-reach parts
- Reducing loss of loose parts during assembly which decreases product failure rates and benefits inventory control.
- Compatibility with automated production equipment.
Length is measured from underneath the head, including the washers
SEMS Design (Assembly Type Screws)
The washers on this SEMS screw are free spinning. Underneath the socket head is a helical split lock washer, beneath the lock washer is a flat washer.
This double washer screw is common in the electronics industry but can be used in automotive, energy, agriculture, etc.
Material
Class 10.9 metric socket bolts are considered hardened, providing a high strength, high tensile fastening solution. Pair with Class 10 or stronger nuts.
Zinc Plated finish for corrosion resistance. Yellow Zinc finish available for some lengths as a special order, min box qty required.
