231781 – Nuts – Hex 937″ – Thickness 437″ – Thread Size 625-18

SKU: 231781

$1.20

3 in stock

Description

231781 driveshaft nut, 0.625-18 UNF thread, 0.937 inch hex, 0.437 inch thickness.

Full Description

231781 Driveshaft Nut -- 5/8-18 Thread, 0.937" Hex

The 231781 is a light-duty driveshaft fastener at 5/8-18 UNF thread with a 0.937-inch (approximately 15/16") hex. This size is found on U-bolt hardware, companion flange bolts on smaller axle applications, and driveshaft hardware in the 1210-1310 series range where torque requirements are moderate.

SKU
231781
Thread
0.625-18 UNF (5/8-18)
Hex
0.937" (~15/16")
Thickness
0.437"
Cross-reference
Spicer 231781

When replacing U-bolt nuts on driveshafts, always replace as a set -- four nuts from the same batch ensures consistent thread engagement and clamp load across all four positions. Using two old and two new nuts introduces uneven clamping that tilts the bearing cap and causes premature U-joint wear.

Additional information
Hex937
NotesPreapplied Thread-Lock
Partn number231781
Self lockingY
Thickness437
Thread size625-18

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20-74-91 driveshaft part image - 20-74-91 – Nuts – Hex 1.625" – Thread Size 1.250-18 – Thickness 0.63
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Notes
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231421-2 driveshaft part image - 231421-2 – Nuts – Hex 0.5" – Thickness 266" – Thread Size .312-24
Hex
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Partn number
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Self locking
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Thickness
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231421-7 driveshaft part image - 231421-7 – Nuts – Hex 938" – Thickness 547" – Thread Size 625-18
Hex
:
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Partn number
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Self locking
:
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Thickness
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Notes
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24-74-21 driveshaft part image - 24-74-21 – Nuts – Hex 2.197" – Thickness 625" – Thread Size 1.500-18
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