14 X 2 1/2 HEX HEAD #3 TEK WITH WASHER, PLATED

Name: 14 X 2 1/2 HEX HEAD #3 TEK WITH WASHER, PLATED
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#2 & #3 Standard Drill PointSelf Drilling Screws

SAE J78-2013
Nominal Size or Basic Screw Diameter		Threads per Inch	T		t		P		Minimum Practical Nominal Screw Lengths, Formed Points				Minimum Torsional Strength, lb - in (STEEL SCREWS ONLY)
			Major Diameter		Minor Diameter		Protrusion Allowance		Minimum Practical Nominal Screw Lengths, Formed Points
			Max	Min	Max	Min	#2 Point	#3 Point	90° Head, #2 Point	Csk Head, #2 Point	90° Head, #3 Point	Csk Head, #3 Point
#4	0.112	24	0.114	0.110	0.086	0.082	0.163	-	5/16	3/8	-	-	14
#6	0.138	20	0.139	0.135	0.104	0.099	0.190	0.220	5/16	3/8	3/8	7/16	24
#8	0.164	18	0.166	0.161	0.122	0.116	0.211	0.251	3/8	7/16	7/16	1/2	42
#10	0.190	16	0.189	0.183	0.141	0.135	0.235	0.300	7/16	1/2	1/2	9/16	61
#12	0.216	14	0.215	0.209	0.164	0.157	0.283	0.353	1/2	5/8	1/2	5/8	92
#14	0.250	14	0.246	0.240	0.192	0.185	0.318	0.393	1/2	5/8	1/2	5/8	150

	Steel	Stainless
Material	AISI 1016 - 1024 or equivalent steel	410 or 18-8 stainless steel
Heat Treatment	Screws shall be quenched in liquid and then tempered by reheating to 625°F minimum.	410 stainless steel screws shall be hardened and tempered by heating to 1800°-1900°F sufficient for austenitization, held for at least 1/2 hour and rapid air or oil-quenched then reheating to 500°-600°F for at least 1 hour and air cooled to provide the specified hardness.
Case Hardness	Rockwell C52 - 58	410 SS: Rockwell C55 minimum
Case Depth	No. 4 & 6 diameter: .002 - .007 No. 8 thru 12 diameter: .004 - .009 1/4 diameter & larger: .005 - .011	-
Core Hardness	Rockwell C32 - 40 (after tempering)	410 SS: Rockwell C38 - 42 (after tempering) 18-8 SS: Rockwell B90 - C25 (approx.)

For Use with Screw of this Nominal Diameter	S		N		G	C		E
	Outside Diameter of Steel Section		Inside Diameter of Steel Section		Thickness of Steel Section	Inside Diameter of EPDM Section		Thickness of EPDM Section
	Max	Min	Max	Min	Ref	Max	Min	Max	Min
#8	0.507	0.491	0.212	0.196	0.031	0.149	0.126	0.087	0.070
#10	0.507	0.491	0.212	0.196	0.031	0.149	0.023	0.087	0.070
#12	0.558	0.542	0.243	0.227	0.031	0.197	0.172	0.087	0.070
#14	0.617	0.601	0.275	0.259	0.031	0.232	0.208	0.087	0.070

NOTE: There is no single standard for Neo-EPDM dimensions. These values are offered as a guide; deviations from these specifications may occur.
All dimensions are in inches.

Material	Steel Section of Washer: 20 gauge steel Elastic Section of Washer: Style 40 EPDM sheet
Hardness	EPDM Material: Shore A 65 - 75 (Durometer scale)
Plating	Steel Section of Washer: Galvanized