hex washer self-drilling TEK #4 point Self-Drilling Screws

1/4-20 x 5/8" 1 in Self Driller Self tapping screw

Self drill tap tek screw 1/4-20*5/8

Drills, Taps & Fastens
7/16" Head
1/4-20 x 5/8"
#2 PT
Indented Hex Washer Head
Max RPM = 2000

7/16" Head
1/4-20 x 1"
#2 PT

Garage Door Track Bolts And Serrated Flange Nuts ( 1/4-20 )

7/16 Inch Hex Head Nut
1/4 -20 x 5/8" Bolt

Quantity 10 Locking Nuts
1/4 - 20 Thread
Serrated Flange Face To Providing Locking

Slotted rib neck track bolts 

1/4*20-1"

1/4*20-5/8

Full thread 

Max torque=6

1/4-20 thread

zinc plated

Hex bolts and nuts

5/16-18*1"

5/16-18*3/4

3/8-16*3/4

3/8-16*1"

3/8-16*1 1/2

1/4-20*3/4

1/4-20*1 7/8

And mattched hex nuts

Lag screw

5/16-1 5/8"

5/16-3"

1/4-1"

Full thread

ypically used for mounting tracks and plates into wookd jambs

Serrated flange nuts

5/16*18   1/2hex head

1/4*20    7/16 hex head

Round head low shoulder carriage bolts and nuts

3/8-16*3/4 

5/16-18*3/4

1/4-20*5/8

Flat head carriage bolt 

1/4-20*2 1/2

1/4-20* 2 1/4

1/4-20*1 7/8