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Fastener Selection Guide
Pictorial Table of Fasteners

Machine Screws

Combination Machine Screw

Combination

Flat Phillips Machine Screw

Flat Phillips

Oval Phillips Machine Screw

Oval Phillips

Pan Phillips Machine Screw

Pan Phillips

Round Phillips Machine Screw

Round Phillips

Truss Phillips Machine Screw

Truss Phillips

Flat Phillips Undercut Machine Screw

Flat Phillips Undercut

Flat Slotted Machine Screw

Flat Slotted

Fillister Slotted Machine Screw

Fillister Slotted

Oval Slotted Machine Screw

Oval Slotted

Pan Slotted Machine Screw

Pan Slotted

Round Slotted Machine Screw

Round Slotted

Truss Slotted Machine Screw

Truss Slotted

Flat Slotted Undercut Machine Screw

Flat Slotted Undercut

Indented Hex Slotted Machine Screw

Indented Hex Slotted

Indented Hex Unslotted Machine Screw

Indented Hex Unslotted

Indented Hex Washer Slotted Machine Screw

Indented Hex Washer Slotted

Indented Hex Washer Unslotted Machine Screw

Indented Hex Washer Unslotted

Pan Torx Machine Screw

Pan Torx®

 

Sems

Pan Phillips External Sems

Pan Phillips External

Pan Slotteds External Sems

Pan Slotteds External

Pan Phillips Internal Sems

Pan Phillips Internal

Pan Slotted Internal Sems

Pan Slotted Internal

 

Stainless Steel Sems

Pan Phillips External Stainless Steel Sems

Pan Phillips External

 
 
 
 

Self Tapping Screws

Pan Combination A Self Tapping Screw

Pan Combination A

Flat Phillips A Self Tapping Screw

Flat Phillips A

Oval Phillips A Self Tapping Screw

Oval Phillips A

Pan Phillips A Self Tapping Screw

Pan Phillips A

Truss Phillips A Self Tapping Screw

Truss Phillips A

Flat Slotted A Self Tapping Screw

Flat Slotted A

Pan Slotted A Self Tapping Screw

Pan Slotted A

Indented Hex Unslotted A Self Tapping Screw

Indented Hex Unslotted A

Serrated Indented Hex Washer Slotted AB Self Tapping Screw

Serrated Indented Hex Washer Slotted AB

Indented Hex Washer Slotted A Self Tapping Screw

Indented Hex Washer Slotted A

Indented Hex Washer Unslotted A Self Tapping Screw

Indented Hex Washer Unslotted A

Indented Hex Washer Slotted Self Tapping Screw

Indented Hex Washer Slotted

Flat Square Recess A Self Tapping Screw

Flat Square Recess A

Pan Square Recess A Self Tapping Screw

Pan Square Recess A

Genuine Torx Pan AB Self Tapping Screw

Genuine Torx® Pan AB

Flat Phillips B Self Tapping Screw

Flat Phillips B

Pan Phillips B Self Tapping Screw

Pan Phillips B

Truss Phillips B Self Tapping Screw

Truss Phillips B

Pan Slotted B Self Tapping Screw

Pan Slotted B

Indented Hex Washer Slotted B Self Tapping Screw

Indented Hex Washer Slotted B

Indented Hex Washer Unslotted B Self Tapping Screw

Indented Hex Washer Unslotted B

 
 
 
 

Hex Lock Screws

Flat Phillips High-Low Hex Lock Screw

Flat Phillips High-Low

Pan Phillips High-Low Hex Lock Screw

Pan Phillips High-Low

Indented Hex Washer Unslotted High-Low Hex Lock Screw

Indented Hex Washer Unslotted High-Low

 
 

Thread Cutting - Type F

Flat Phillips Thread Cutting Type F Screw

Flat Phillips

Pan Phillips Thread Cutting Type F Screw

Pan Phillips

Pan Slotted Thread Cutting Type F Screw

Pan Slotted

Indented Hex Washer Slotted Thread Cutting Type F Screw

Indented Hex Washer Slotted

Indented Hex Washer Unslotted Thread Cutting Type F Screw

Indented Hex Washer Unslotted

Torx Floorboard Thread Cutting Type F Screw

Torx® Floorboard

 
 
 
 

Stainless Thread Cutting - Type F

Flat Phillips Stainless Thread Cutting Type F Screw

Flat Phillips

Pan Phillips Stainless Thread Cutting Type F Screw

Pan Phillips

Pan Slotted Stainless Thread Cutting Type F Screw

Pan Slotted

Indented Hex Washer Slotted Stainless Thread Cutting Type F Screw

Indented Hex Washer Slotted

Indented Hex Washer Unslotted Stainless Thread Cutting Type F Screw

Indented Hex Washer Unslotted

Thread Cutting - Type 23

Flat Phillips Thread Cutting Type 23 Screw

Flat Phillips

Pan Phillips Thread Cutting Type 23 Screw

Pan Phillips

Pan Slotted Thread Cutting Type 23 Screw

Pan Slotted

Indented Hex Washer Slotted Thread Cutting Type 23 Screw

Indented Hex Washer Slotted

Indented Hex Washer Unslotted Thread Cutting Type 23 Screw

Indented Hex Washer Unslotted

Thread Cutting - Type 25

Flat Phillips Thread Cutting Type 25 Screw

Flat Phillips

Pan Phillips Thread Cutting Type 25 Screw

Pan Phillips

Pan Slotted Thread Cutting Type 25 Screw

Pan Slotted

Indented Hex Washer Slotted Thread Cutting Type 25 Screw

Indented Hex Washer Slotted

Indented Hex Washer Unslotted Thread Cutting Type 25 Screw

Indented Hex Washer Unslotted

Cap Screws, Bolts

Hex Grade 2 Cap Screw / Bolt

Hex Cap Grade 2

Hex Grade 5 Cap Screw / Bolt

Hex Cap Grade 5

Hex Grade 8 Cap Screw / Bolt

Hex Cap Grade 8

Carriage Bolt

Carriage Bolts

Grade 5 Carriage Bolt

Grade 5 Carriage Bolts

Grade 8 Alloy Frame Bolt

Grade 8 Alloy Frame

Flat Head Slotted Cap Screw

Flat Head Slotted Cap

Serrated Hex Washer Flange Screw

Serrated Hex Washer Flange

Elevator Bolt

Elevator Bolts

Hanger Bolt

Hanger Bolts

Dowel Screw

Dowel Screws

Hex Lag Screw

Hex Lag

Grade 2 Hex Tap Screw Bolt

Grade 2 Hex Tap

Grade 5 Hex Tap Screw Bolt

Grade 5 Hex Tap

Grade 5 Plow Bolt #3 Head

Grade 5 Plow #3 Head

Grade 8 Plow Bolt #3 Head

Grade 8 Plow #3 Head

Step Bolt

Step Bolts

 
 
 

Threaded Rod

Threaded Rod

Threaded Rod

 
 
 
 

Nuts

Cap Nut

Cap Nut

Castle Nut

Castle Nut

Hex Coupling

Hex Coupling

Finished Hex Nut

Finished Hex

Grade 5 Finished Hex Nut

Grade 5 Finished Hex

Grade 8 Finished Hex Nut

Grade 8 Finished Hex

Grade 5 Finished Hex Nut

Grade 5 Finished Hex

Grade 8 Finished Hex Nut

Grade 8 Finished Hex

Serrated Hex Flange Lock Nut

Serrated Hex Flange Lock

K Lock Nut

"K" Lock

Nylon Insert Lock Nut

Nylon Insert

Hex Panel Nut

Hex Panel Nut

Slotted Hex Nut - Finished Pattern

Slotted Hex -
Finished Pattern

Square Machine Screw Nut

Square Machine Screw

Regular Square Nut

Regular Square

U Steel Spring Nut

"U" Steel Spring

J Steel Spring Nut

"J" Steel Spring

Flat Steel Spring Nut

Flat Steel Spring

Grade C Lock Nut

Grade C Lock

Lock Flange Nut

Lock Flange

Tee Nut

Tee Nuts

Two Way Reversible Lock Nut

Two Way Reversible Lock

Wing Nuts Cold Forged

Wing Nuts Cold Forged

Wing Nuts Stamped

Wing Nuts Stamped

 

Washers

Countersunk Finishing Washer

Countersunk Finishing

External Tooth Lock Washer

External Tooth Lock

Countersunk External Tooth Lock Washer

Countersunk External Tooth Lock

Internal Tooth Lock Washer

Internal Tooth Lock

Medium Split Lock Washer

Medium Split Lock

Machine Screw Washer

Machine Screw

Fender Washer

Fender

Flat Washer

Flat Washer

 
 

Retaining Rings

Retaining Rings

Retaining Rings

External Retaining Rings

External Retaining Rings

E Rings

E Rings

 
 

Socket Products

Socket Head Cap

Socket Head Cap

Stainless Steel Socket Head Cap

Stainless Steel Socket Head Cap

Low Head Socket Cap

Low Head Socket Cap

Flat Head Socket Cap

Flat Head Socket Cap

Button Head Socket Cap

Button Head Socket Cap

Socket Shoulder

Socket Shoulder

Socket Set Screw - Cup Point

Socket Set Screw -
Cup Point

Socket Set Screw - Cone Point

Socket Set Screw -
Cone Point

Socket Set Screw - 1/2 Dog Point

Socket Set Screw -
1/2 Dog Point

Dowel Pins - Bright

Dowel Pins - Bright

Dry Seal Socket Pipe Plug

Dry Seal Socket
Pipe Plug

 
 
 
 

Pins

Cotter Pins

Cotter Pins

Spring Pins

Spring Pins

 
 
 

Thumb Screws

Thumb Screws Type P

Thumb Screws
Type P

 
 
 
 

Wood Screws

Flat Phillips Wood Screws

Flat Phillips

Oval Phillips Wood Screws

Oval Phillips

Round Phillips Wood Screws

Round Phillips

Flat Slotted Wood Screws

Flat Slotted

Oval Slotted Wood Screws

Oval Slotted

Round Slotted Wood Screws

Round Slotted

 
 
 
 

Zinc Yellow Fasteners

Flat Phillips Machine Zinc Yellow Fasteners

Flat Phillips Machine

Flat Phillips 100 degree Machine Zinc Yellow Fasteners

Flat Phillips 100° Machine

Pan Phillips Machine Zinc Yellow Fasteners

Pan Phillips Machine

Hex Machine Nuts Zinc Yellow Fasteners

Hex Machine Nuts

Medium Split Lock Zinc Yellow Fasteners

Medium Split Lock

Hot Dipped Galvanized

Carriage Bolts Steel Hot Dipped Galvanized

Carriage Bolts Steel

Hex Lag Steel Hot Dipped Galvanized

Hex Lag Steel

Hex Machine Coarse Thread Hot Dipped Galvanized

Hex Machine
Coarse Thread

Finished Hex Nuts Hot Dipped Galvanized

Finished Hex Nuts

Flat Washers Steel Hot Dipped Galvanized

Flat Washers Steel

High Collar Lock Washers Hot Dipped Galvanized

High Collar
Lock Washers

 
 
 
 

Metric Screw Thread Chart

Metric Tap Size

Tap Drill in Inches

Clearance Drill in Inches

M1.6 x .35

#55 (.052)

#50 (.070)

M1.8 x .35

#53 (.057)

#48 (.076)

M2 x .4

#52 (.063)

#45 (.082)

M3 x .5

#39 (.0995)

1/8 (.125)

M3.5 x .6

#32 (.116)

#28 (.140)

M4 x .7

#29 (.136)

#19 (.166)

M4.5 x .75

#25 (.1495)

#14 (.182)

M5 x .8

#18 (.169)

#7 (.201)

M6 x 1

#8 (.199)

"C" (.242)

M7 x 1

"B" (.238)

9/32 (.281)

M8 x 1.25

"I" (.272)

"P" (.323)

M8 x 1

"J" (.272)

"P" (.323)

M10 x 1.5

"K" (.339)

13/32 (.406)

M10 x 1.25

"S" (.348)

13/32 (.406)

M12 x 1.75

13/32 (.406)

31/64 (.484)

M12 x 1.25

27/64 (.421)

31/64 (.484)

M14 x 2

31/64 (.484)

9/16 (.562)

M14 x 1.5

1/2 (.500)

9/16 (.562)

M16 x 2

9/16 (.562)

41/64 (.640)

M16 x 1.5

37/64 (.578)

41/64 (.640)

M18 x 2.5

5/8 (.625)

23/32 (.718)

M18 x 1.5

21/32 (.656)

23/32 (.718)

M20 x 2.5

45/64 (.703)

13/16 (.812)

M20 x 1.5

47/64 (.734)

13/16 (.812)

 

Outside Diameter of Screws in Inches

MM

Inches

 

MM

Inches

 

MM

Inches

1.6

.063

 

6.0

.236

 

19

.748

1.8

.071

 

7.0

.275

 

20

.787

2.0

.078

 

8.0

.315

 

21

.827

3.0

.118

 

10.0

.394

 

22

.866

3.5

.138

 

12

.472

 

 

 

4.0

.157

 

14

.551

 

 

 

4.5

.177

 

16

.630

 

 

 

5.0

.197

 

18

.708

 

 

 


Minimum Strengths

METRIC
(ISO 898)
  INCH
(SAE J429)
 No Marking Grade 4, 8 Minimum Strengths =  No Marking Grade 2 Minimum Strengths

Grade 4, 8 (4.6, 5.8)
Tensile: 429 MPa
(60,900 psi)

 

Grade 2
Tensile: 60,000 psi
 

Grade 8.8 Minimum Strengths  = Grade 5 Minimum Strengths 

 Grade 8.8
Tensile: 830 MPa
(120,350 psi)

 

Grade 5
Tensile: 120,000 psi
 

5-grade-10-9-th  = Grade 8 Minimum Strengths 

Grade 10.9
Tensile: 1040 MPa
(150,800 psi)

 

Grade 8
Tensile: 150,000 psi
 

Grade 12.9 Minimum Strengths  = Grade ASTM-A574 Minimum Strengths 

 Grade 12.9
Tensile: 1220 MPa
(176,900 psi)

 

Grade ASTM-A574
Tensile: 170,000 psi
Note: Generally
not marked 

 

 Size - Nominal Diameter     

     Pitch 

     Tap Drill 

 M 1.60

0.35 

1.25 

 M 2.00

.04 

1.6 

 M 2.50

0.45 

 M 3.00

0.5 

2.5 

 M 3.50

0.6 

2.9 

 M 4.00

0.7 

3.3 

 M 5.00

0.8 

4.2 

 M 6.00

 M 8.00

1.25 

6.8 

 M 10.00

1.5 

8.5 

 M 12.00

1.75 

10.2 

 M 14.00

12 

 M 16.00

14 

 M 20.00

2.5 

17.5 

 M 22.00

2.5 

19.5 

 M 24.00

21 

 M 27.00

24 

 M 30.00

3.5 

26.5 

 M 36.00

32 

 M 42.00

4.5 

37.5 

 M 48.00

43 

 M 56.00

5.5 

50.5 

 M 64.00

58 

 M 68.00

62 

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