Square Nuts

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Square nuts are four-sided nuts designed for use with a square head bolt & flat washer. They have a large surface in contact with the part being fastened and therefore, offer superior resistance to... Read More

GRAINGER -

Square Nut - Regular

GRAINGER M11140.040.0001A
GRAINGER M11140.050.0001B
GRAINGER M11140.060.0001C
GRAINGER M11140.080.0001D
GRAINGER M11140.100.0001E
GRAINGER M11140.120.0001F
StyleModelDia./Thread SizeHeightWidthPrice (inc. GST)
AM11140.040.0001M4 x 0.73.2mm7mm SGD 12.21
BM11140.050.0001M5 x 0.84mm8mm SGD 10.25
CM11140.060.0001M6 x 15mm10mm SGD 16.17
DM11140.080.0001M8 x 1.256.5mm13mm SGD 16.91
EM11140.100.0001M10 x 1.58mm17mm SGD 36.33
FM11140.120.0001M12 x 1.7510mm19mm SGD 68.72
DYNAFORM -

Square Nut Fiberglass

DYNAFORM 874320A
DYNAFORM 874330B
StyleModelDia./Thread SizeWidthPrice (inc. GST)
A8743201/2"-131/2" SGD 11.49
B8743303/4"-103/4" SGD 13.33
APPROVED VENDOR -

Square Nut Machine Screw

APPROVED VENDOR NUT90106CA
APPROVED VENDOR NUT90110FB
StyleModelDia./Thread SizeHeightThread TypeWidthPrice (inc. GST)
ANUT90106C#6-327/64"UNC5/16" SGD 3.91
BNUT90110F#10-321/8"UNF3/8" SGD 8.15
SUPER-STRUT -

E146 Series Square Nut

SUPER-STRUT E146-1/2SS6A
StyleModelHeightMaterialSizeThread SizeWidth
AE146-1/2SS67/16"Stainless Steel1/2"1/2-1313/16"
RFQ
AE146-1/27/16"Steel1/2-131/2-13-
RFQ
AE146-1/2SS7/16"Stainless Steel1/2"1/2-1313/16"
RFQ
AE146-1/47/32"Steel1/4"1/4-207/16"
RFQ
AE146-5/1617/64"Steel5/16"5/16-189/16"
RFQ
AE146-5/835/64"Steel5/8"5/8-111"
RFQ
AE146-3/835/64"Steel3/8"3/8-165/8"
RFQ
SUPER-STRUT -

AB102 Series Square Nut

SUPER-STRUT AB102-1/2-EGA
StyleModelFinishHeightSizeThread SizeWidth
AAB102-1/2-EGElectro-Galvanized7/16"1/2"1/2-1313/16"
RFQ
AAB102-5/8EGElectro-Galvanized35/64"5/8"5/8-111"
RFQ
AAB102-1/2Gold Galvanized-1/2"1/2-13-
RFQ
AAB102-7/8Gold Galvanized49/64"7/8"7/8-91-5/16"
RFQ
AAB102-5/8Gold Galvanized-5/8"5/8-11-
RFQ
AAB102-3/8Gold Galvanized-3/8"3/8-16-
RFQ
AAB102-1/4Gold Galvanized-1/4"1/4-20-
RFQ
UNISTRUT -

Square Nut

UNISTRUT HSQN050-EGA
UNISTRUT HSQN025-EGB
StyleModelSize
AHSQN050-EG1/2"
RFQ
BHSQN025-EG1/4"
RFQ
BHSQN037-EG3/8"
RFQ
BHSQN062-EG5/8"
RFQ
BHSQN031-EG5/16"
RFQ
FABORY -

Square Nuts

FABORY B11120.037.0001A
FABORY U11140.016.0001B
FABORY U11120.125.0001C
FABORY U11120.150.0001D
FABORY U11121.025.0001E
FABORY U11121.031.0001F
FABORY U11121.037.0001G
FABORY U11121.050.0001H
FABORY B11120.050.0001I
FABORY U11121.075.0001J
FABORY U11121.087.0001K
FABORY U11121.100.0001L
FABORY U11121.112.0001M
FABORY U11121.125.0001N
FABORY U11140.013.0001O
FABORY U11140.019.0001P
FABORY U11120.100.0001Q
FABORY U11140.021.0001R
FABORY U11140.025.0001S
FABORY U11140.031.0001T
FABORY U11140.037.0001U
FABORY U11140.043.0001V
FABORY U11140.050.0001W
FABORY U11140.062.0001X
FABORY U11140.075.0001Y
StyleModelBasic MaterialDia./Thread SizeFastener FinishFinishGradeHeightStyleSystem of MeasurementPrice (inc. GST)
AB11120.037.0001Low Carbon Steel3/8"-16PlainPlainGrade A21/64"Square Nut - RegularInch SGD 346.84
BU11140.016.0001Low Carbon Steel#8-32Zinc PlatedZinc Plated-1/8"Square Nut - RegularInch SGD 7.18
CU11120.125.0001Low Carbon Steel1 1/4"-7PlainPlain-1 3/32"Square Nut - RegularInch SGD 7.16
DU11120.150.0001Low Carbon Steel1 1/2"-6PlainPlain-1 5/16"Square Nut - RegularInch SGD 8.16
EU11121.025.0001Low Carbon Steel1/4"-20PlainPlainA1/4"Square Nut - HeavyInch SGD 98.07
FU11121.031.0001Low Carbon Steel5/16"-18PlainPlainA5/16"Square Nut - HeavyInch SGD 119.47
GU11121.037.0001Low Carbon Steel3/8"-16PlainPlainA3/8"Square Nut - HeavyInch SGD 145.61
HU11121.050.0001Low Carbon Steel1/2"-13PlainPlainA1/2"Square Nut - HeavyInch SGD 105.39
IB11120.050.0001Low Carbon Steel1/2"-13PlainPlainGrade A7/16"Square Nut - RegularInch SGD 352.12
JU11121.075.0001Low Carbon Steel3/4"-10PlainPlainA3/4"Square Nut - HeavyInch SGD 91.09
KU11121.087.0001Low Carbon Steel7/8"-9PlainPlainA7/8"Square Nut - HeavyInch SGD 215.47
LU11121.100.0001Low Carbon Steel1-8PlainPlainA1"Square Nut - HeavyInch SGD 17.80
MU11121.112.0001Low Carbon Steel1 1/8"-7PlainPlainA1 1/8"Square Nut - HeavyInch SGD 36.16
NU11121.125.0001Low Carbon Steel1 1/4"-7PlainPlainA1 1/4"Square Nut - HeavyInch SGD 40.47
OU11140.013.0001Low Carbon Steel#6-32Zinc PlatedZinc Plated-1/8"Square Nut - RegularInch SGD 6.73
PU11140.019.0001Low Carbon Steel#10-24Zinc PlatedZinc Plated-1/8"Square Nut - RegularInch SGD 6.89
QU11120.100.0001Low Carbon Steel1-8PlainPlain-7/8"Square Nut - RegularInch SGD 18.92
RU11140.021.0001Low Carbon Steel#12-24Zinc PlatedZinc Plated-5/32"Square Nut - RegularInch SGD 8.15
SU11140.025.0001Low Carbon Steel1/4"-20Zinc PlatedZinc Plated-7/32"Square Nut - RegularInch SGD 11.09
TU11140.031.0001Low Carbon Steel5/16"-18Zinc PlatedZinc Plated-17/64"Square Nut - RegularInch SGD 22.64
UU11140.037.0001Low Carbon Steel3/8"-16Zinc PlatedZinc PlatedLow Carbon21/64"Square Nut - RegularInch SGD 31.61
VU11140.043.0001Low Carbon Steel7/16"-14Zinc PlatedZinc Plated-3/8"Square Nut - RegularInch SGD 47.19
WU11140.050.0001Low Carbon Steel1/2"-13Zinc PlatedZinc PlatedLow Carbon7/16"Square Nut - RegularInch SGD 34.46
XU11140.062.0001Low Carbon Steel5/8"-11Zinc PlatedZinc Plated-35/64"Square Nut - RegularInch SGD 26.02
YU11140.075.0001Low Carbon Steel3/4"-10Zinc PlatedZinc PlatedLow Carbon21/32"Square Nut - RegularInch SGD 18.36
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APPROVED VENDOR -

Square Nut 5/16-18, 100PK

Square Nut 5/16-18, 100PK
ModelItemPrice (inc. GST)
1XA89AB4CYB SGD 35.02
APPROVED VENDOR -

Square Nut 1/2-13, 50PK

Square Nut 1/2-13, 50PK
ModelItemPrice (inc. GST)
1XA92AB4CYC SGD 39.18
APPROVED VENDOR -

Square Nut 5/8-11, 25PK

Square Nut 5/8-11, 25PK
ModelItemPrice (inc. GST)
1XA93AB4CYD SGD 34.54
APPROVED VENDOR -

Square Nut 1/2-13, 50PK

Square Nut 1/2-13, 50PK
ModelItemPrice (inc. GST)
1XA98AB4CYE SGD 43.53
APPROVED VENDOR -

Square Nut 10-24, 100PK

Square Nut 10-24, 100PK
ModelItemPrice (inc. GST)
1XB13AB4DGC SGD 8.24
APPROVED VENDOR -

Square Nut 1/4-20, 100PK

Square Nut 1/4-20, 100PK
ModelItemPrice (inc. GST)
1XB14AB4DGD SGD 14.61

Square Nuts

Square nuts are four-sided nuts designed for use with a square head bolt & flat washer. They have a large surface in contact with the part being fastened and therefore, offer superior resistance to loosening. Raptor Supplies offers these square nuts from brands like Grainger, Dynaform, Fabory, Super-Strut and Unistrut.

Features

  • Square nuts are used with flat washers to prevent damage from their sharp edges and improve the strength of the fastener.
  • They work well in restricted spaces when using pliers or wrenches, and are less likely to become rounded-off due to frequent loosening / tightening.
  • Square nuts have fine / standard / coarse threading and are available in plain, zinc clear, zinc yellow, tin and cadmium plating variants.
  • Raptor Supplies offers square nuts made of stainless steel, steel or Vinyl Ester Fire-Retardant Resin (VEFR), in thread sizes ranging from 1/2-13 to 10-24.

Frequently Asked Questions

How do you know if a nut is left or right handed?

Nut handedness describes the way a nut's thread wrap around a shaft. Left-handed threads run counterclockwise, and right-handed threads run clockwise.

What are the benefits of using a square nut?

  • Easy to Tighten: They feature a four-sided shape for easy tightening. These nuts grip two opposite sides of the fasteners to tighten or loosen them.
  • Quick Gauge: They provide a quick visual gauge for easy checks and decreasing the risk of fastener failure.
  • Perfect for Blind / Tight Locations: They can be tightened using a wrench or pliers for use in blind locations. Users can tighten or loosen a square-shaped fastener without looking at it, once grip is obtained.

What are the differences between hex nuts and square nuts??

  • Hex nuts are easier to install and tighten than square nuts as they have more sides to provide more torque.
  • Square nuts need more space as they require wrench movement in a 90-degree range. On the other hand, hex nuts can be installed in smaller spaces as they require only 60-degree wrench movement.
  • Square nuts provide better protection against accidental loosening as compared to hex nuts. Square nuts usually cover a larger surface area to press against the object, thereby preventing their loosening.

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