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STP31A0400180B

Screw for Plastic
STP31A 4.0x18.0 - H2
steel, hardened
Zinc-Nickel-plated min. 5µm, passivated black/ Cr-VI-free, baked, sealed

identical to WN1411 / KN1031
similar to WN1441

Product image Drawing

Specifications Downloads


Item Number		STP31A0400180B
Standard		KN1031
Material		steel, hardened
Surface		Zinc-Nickel-plated min. 5µm, passivated black/ Cr-VI-free, baked, sealed
Thread Outside-Ø	d1	4.00+0.18 mm
Thread Core-Ø	d2	2.17 mm
Thread Pitch	p	1.79 mm
Length	L	18.00±0.55 mm
Head-Ø	D	8.00-0.36 mm
Head Height	K	2.500±0.125 mm
Flange Thickness	S	0.90 mm
Thread Run-Out	X	2.00 mm
Radius	R	0.40 mm
Size Cross Recess		H2
Penetration Depth	t	1.33 - 1.96 mm
Thread		STS
Weight		1.363 kg / 1000 pieces

All technical information about is available for download, here. Spec sheet Metric Drawing Inch Drawing Declaration of Conformity .STEP File .IGES File

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local stock	0 pcs.
remote stock (10 working day(s) transfer time)	8,966 pcs.
Quantity		pcs.
Unit Price	from 0.03370 $
Total	$
excl. shipping and tax

Quantity discounts

Quantity	Price each
from 1	$ 1.37000
from 10	$ 0.83000
from 20	$ 0.71000
from 50	$ 0.58000
from 100	$ 0.50200
from 200	$ 0.43300
from 300	$ 0.39700
from 400	$ 0.37400
from 500	$ 0.35700
from 1,000	$ 0.30900
from 2,000	$ 0.22200
from 3,000	$ 0.18500
from 4,000	$ 0.16200
from 5,000	$ 0.14700
from 6,000	$ 0.13600
from 7,000	$ 0.12700
from 8,000	$ 0.12000
from 9,000	$ 0.11400
from 10,000	$ 0.11000
from 11,000	$ 0.10500
from 12,000	$ 0.09980
from 13,000	$ 0.09530
from 14,000	$ 0.09110
from 15,000	$ 0.08710
from 16,000	$ 0.08340
from 17,000	$ 0.07990
from 18,000	$ 0.07650
from 19,000	$ 0.07340
from 20,000	$ 0.07050
from 22,000	$ 0.06670
from 24,000	$ 0.06350
from 26,000	$ 0.06080
from 28,000	$ 0.05840
from 30,000	$ 0.05630
from 32,000	$ 0.05450
from 34,000	$ 0.05290
from 36,000	$ 0.05140
from 38,000	$ 0.05010
from 40,000	$ 0.04890
from 42,000	$ 0.04780
from 44,000	$ 0.04680
from 46,000	$ 0.04590
from 48,000	$ 0.04510
from 50,000	$ 0.04430
from 55,000	$ 0.04260
from 60,000	$ 0.04120
from 65,000	$ 0.04110
from 90,000	$ 0.04030
from 95,000	$ 0.03970
from 100,000	$ 0.03910
from 110,000	$ 0.03850
from 120,000	$ 0.03760
from 130,000	$ 0.03680
from 140,000	$ 0.03620
from 150,000	$ 0.03560
from 160,000	$ 0.03510
from 170,000	$ 0.03470
from 180,000	$ 0.03430
from 190,000	$ 0.03400
from 200,000	$ 0.03370

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