Self-tapping screw

Details Self-tapping screw Self-tapping screw

1984-06-04

1985-10-01

Holko, Thomas J.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Externally threaded fastener element, e.g., bolt, screw, etc.

Thread or shank structure

411424, F16B 2500, F16B 3302

Patent

active

045443130

ABSTRACT:
A self-tapping screw. The core of the screw between adjacent threads has a constricted portion, the narrowestmost point thereof lying approximately in the center between the two adjacent threads. The core is tapered expanding outwardly from the constriction to the bases of the two adjacent threads.

REFERENCES:
patent: Re3941 (1870-04-01), Pierce
patent: 1798604 (1931-03-01), Hoke
patent: 3726330 (1973-04-01), Adler
patent: 3902399 (1975-09-01), Yotti
patent: 3911781 (1975-10-01), Bappert
patent: 3942405 (1976-03-01), Wagner
patent: 4027573 (1977-06-01), Laverty

Affiliated with

Also associated with

Rating

Self-tapping screw does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-tapping screw, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-tapping screw will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1439603