Part fall-out

NBK offers products preventing screw/washer fall-out

Tools with Screw Holding Function

These hexagon screwdrivers and hexagon sockets can retain screws at the tool tip.
Screw mounting and removing is easy even with fiddly miniature screws and screws in inaccessible inner areas.

Part Name	Hexagon Screwdriver (with Screw Holding Function)	Hexagon Sockets (with Screw Holding Function)
Part Number	SKCD	SKCK

With Built-in Washer

The washer is built-in already, so there is no concern needed for washer fall-out during assembly or maintenance.

Material	SUSXM7 (Equivalent to SUS304)	SUS316L	SUS316L	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)
Part Name	Hex Socket Head Cap Screws with Captive Washer and Ventilation Hole	Washer Integrated Hex Socket Head Cap Screws with Ventilation Hole - High Strength Stainless Steel	Washer Integrated Hex Socket Head Cap Screws - High Strength Stainless Steel	Hex Socket Head Cap Screws with Captive Washers（I=3）	Phillips Cross Recessed Pan Head Machine Screws with Captive Washers（I=1）	Phillips Cross Recessed Pan Head Machine Screws with Captive Washers（I=3）	Hex Socket Head Cap Screw with Captive Washer and Ventilation Hole（I=1）
Part Number	SVSQS	SVSQLG	SNSQLG	SNSQS	SNPI1S	SNPI3S	SVSI1S
	Click here for the lineup

Material	TW340 (Grade 2 Titanium)	TW340 (Grade 2 Titanium)	Equivalent to SUS304	Equivalent to SUS304
Part Name	Titanium Hex Socket Head Cap Screws with Captive Washers（I=1）	Titanium Hex Socket Head Cap Screws with Captive Washers（I=3）	Hexagon Head Screws with Captive Washer(P=2)	Hexagon Head Screws with Captive Washer(P=3)
Part Number	SNSI1T	SNSI3T	SNHP2S	SNHP3S
	Click here for the lineup

Captive Screws and Washers

With captive screws, even when removed from the frame, the captive screw does not fall out of the cover because it catches on the cover screw hole.
With captive washers, when a screw mounted on a cover is removed from the frame, the screw does not fall.

Material	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)
Part Name	Socket Head Cap Captive Screws	Socket Head Cap Captive Screws with Low Profile	Socket Head Cap Captive Screws with Special Low Profile	Cross Recessed Truss Head Captive Screws	Captive Washers
Part Number	SSC	SSCLS	SSCHS	SSCMS	SWAS-SC
	Click here for the lineup

Problem Solution Examples by Semiconductor Manufacturing Process

Problem solution examples are introduced by semiconductor manufacturing process.
Pre-process here
Post-process here

"The Semiconductor Industry and NBK" back numbers

List here