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STP21A0400500S
Screw for Plastic
STP21A 4.0x50.0 - Z2
steel, hardened
zinc-plated 5-7 µm, baked, blue / transparent passivated

identical to WN1411 / KN1031
similar to WN1441
Item Number STP21A0400500S
Standard KN1031
Material steel, hardened
Surface zinc-plated 5-7 µm, baked, blue / transparent passivated
Thread Outside-Ø d1 4.00+0.18 mm
Thread Core-Ø d2 2.17 mm
Thread Pitch p 1.79 mm
Length L 50.00±0.80 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 2.911 kg / 1000 pieces
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Stock level 0 pcs.
minimum order quantity 4,000 pcs.
Lead time 16 weeks
Quantity pcs.
Unit Price from 0.05360 $
excl. shipping and tax
Quantity discounts
Quantity Price each
from 1 $ 1.33000
from 10 $ 0.73000
from 20 $ 0.61000
from 50 $ 0.49000
from 100 $ 0.40900
from 200 $ 0.34500
from 300 $ 0.31300
from 400 $ 0.29300
from 500 $ 0.27800
from 1,000 $ 0.23600
from 2,000 $ 0.18600
from 3,000 $ 0.16200
from 4,000 $ 0.14800
from 5,000 $ 0.13800
from 6,000 $ 0.13000
from 7,000 $ 0.12400
from 8,000 $ 0.11900
from 9,000 $ 0.11500
from 10,000 $ 0.11200
from 11,000 $ 0.10800
from 12,000 $ 0.10300
from 13,000 $ 0.09940
from 14,000 $ 0.09560
from 15,000 $ 0.09210
from 16,000 $ 0.08880
from 17,000 $ 0.08570
from 18,000 $ 0.08270
from 19,000 $ 0.08000
from 20,000 $ 0.07740
from 22,000 $ 0.07400
from 24,000 $ 0.07120
from 26,000 $ 0.06880
from 28,000 $ 0.06670
from 30,000 $ 0.06490
from 32,000 $ 0.06370
from 70,000 $ 0.06480
from 75,000 $ 0.06330
from 80,000 $ 0.06200
from 85,000 $ 0.06080
from 90,000 $ 0.05980
from 95,000 $ 0.05880
from 100,000 $ 0.05800
from 110,000 $ 0.06010
from 120,000 $ 0.05880
from 130,000 $ 0.05770
from 140,000 $ 0.05670
from 150,000 $ 0.05590
from 160,000 $ 0.05530
from 170,000 $ 0.05480
from 180,000 $ 0.05440
from 190,000 $ 0.05400
from 200,000 $ 0.05360
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Erik Braam
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