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STP21A0400300B
Screw for Plastic
STP21A 4.0x30.0 - Z2
steel, hardened
Zinc-Nickel-plated min. 5µm, passivated black/ Cr-VI-free, baked, sealed

identical to WN1411 / KN1031
similar to WN1441
Item Number STP21A0400300B
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 30.00±0.65 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 Z2
Penetration Depth t 1.40 - 1.86 mm
Thread STS
Weight 1.946 kg / 1000 pieces
Add item to cart
local stock 0 pcs.
remote stock (10 working day(s) transfer time) 4,818 pcs.
order quantity ≤ 4,818 or ≥ 5,000 pcs.
Lead time > 4818 pcs. 6 weeks
Quantity pcs.
Unit Price from 0.04310 $
excl. shipping and tax
Quantity discounts
Quantity Price each
from 1 $ 1.38000
from 10 $ 0.84000
from 20 $ 0.72000
from 50 $ 0.59000
from 100 $ 0.51000
from 200 $ 0.44100
from 300 $ 0.40500
from 400 $ 0.38100
from 500 $ 0.36400
from 1,000 $ 0.31600
from 2,000 $ 0.23000
from 3,000 $ 0.19200
from 4,000 $ 0.17000
from 5,000 $ 0.15500
from 6,000 $ 0.14300
from 7,000 $ 0.13500
from 8,000 $ 0.12800
from 9,000 $ 0.12200
from 10,000 $ 0.11700
from 11,000 $ 0.11200
from 12,000 $ 0.10700
from 13,000 $ 0.10300
from 14,000 $ 0.09870
from 15,000 $ 0.09470
from 16,000 $ 0.09090
from 17,000 $ 0.08740
from 18,000 $ 0.08410
from 19,000 $ 0.08100
from 20,000 $ 0.07800
from 22,000 $ 0.07420
from 24,000 $ 0.07100
from 26,000 $ 0.06830
from 28,000 $ 0.06600
from 30,000 $ 0.06390
from 32,000 $ 0.06210
from 34,000 $ 0.06040
from 36,000 $ 0.05900
from 38,000 $ 0.05770
from 40,000 $ 0.05650
from 42,000 $ 0.05540
from 44,000 $ 0.05480
from 70,000 $ 0.05350
from 75,000 $ 0.05240
from 80,000 $ 0.05140
from 85,000 $ 0.05050
from 90,000 $ 0.04980
from 95,000 $ 0.04910
from 100,000 $ 0.04850
from 110,000 $ 0.04790
from 120,000 $ 0.04700
from 130,000 $ 0.04620
from 140,000 $ 0.04560
from 150,000 $ 0.04500
from 160,000 $ 0.04450
from 170,000 $ 0.04410
from 180,000 $ 0.04370
from 190,000 $ 0.04340
from 200,000 $ 0.04310
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