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LEAD SCREW ASSEMBLIES: NUT COMPARISON CHART

24 HR SHIPMENT - STANDARD SELECTION OF PROTOTYPES

Haydon Kerk Express

LEAD SCREWS | SCREW SIZE LIST | NUT FEATURE MATRIX | NUT STYLES

Comparison of Kerk® Nut Characteristics
NOMINAL SCREW DIAMETER PROPERTY CMP ZBX ZBA KHD WDG NTB NTG VHD BFW
5/64" (2mm) Dynamic Load                 10 lbs.
(4.5 kg)
Static Frictional Drag Torque                 Free
Wheeling
1/8" (3mm) Dynamic Load           5 lbs.
(2.3 kg)
5 lbs.
(2.3 kg)
  25 lbs.
(11 kg)
Static Frictional Drag Torque           .1-.5 oz.-in.
(.001-.004 NM)
.1-.5 oz.-in.
(.001-.004 NM)
  Free
Wheeling
3/16" (5mm) Dynamic Load 5 lbs.
(2.3 kg)
      10 lbs.
(4.5 kg)
5 lbs.
(2.3 kg)
5 lbs.
(2.3 kg)
  25 lbs.
(11 kg)
Static Frictional Drag Torque 4 oz.-in.
(.03 NM)
      4 oz-in. max.
(.03 NM max.)
.1-.5 oz.-in.
(.001-.004 NM)
.1-.5 oz.-in.
(.001-.004 NM)
  Free
Wheeling
1/4" (6 mm) Dynamic Load 5 lbs.
(2.3 kg)
5 lbs.
(2.3 kg)
5 lbs.
(2.3 kg)
  10 lbs.
(4.5 kg)
10 lbs.
(4.6 kg)
10 lbs.
(4.6 kg)
  50 lbs.
(20 kg)
Static Frictional Drag Torque 4 oz.-in.
(.03 NM)
.5-3 oz.-in.
(.004-.02 NM)
.5-2 oz.-in.
(.004-.014 NM)
  4 oz-in. max.
(.03 NM max.)
.5-2 oz.-in.
(.004-.014 NM)
5-2 oz.-in.
(.004-.014 NM)
. Free
Wheeling
5/16" (8mm) Dynamic Load 8 lbs.
(3.6 kg)
10 lbs.
(5 kg)
10 lbs.
(5 kg)
20 lbs.
(10 kg)
25 lbs.
(11.3 kg)
20 lbs.
(10 kg)
20 lbs.
(10 kg)
  75 lbs.
(35 kg)
Static Frictional Drag Torque 5 oz.-in.
(.04 NM)
1-5 oz.-in.
(.01-.03 NM)
1-3 oz.-in.
(.01-.02 NM)
1-3 oz-in.
(.01-.02 NM)
5 oz.-in. max.
(.04 NM max.)
1-3 oz.-in.
(.01-.02 NM)
1-3 oz.-in.
(.01-.02 NM)
  Free
Wheeling
3/8" (10mm) Dynamic Load 8 lbs.
(3.6 kg)
10 lbs.
(5 kg)
10 lbs.
(5 kg)
20 lbs.
(10 kg)
25 lbs.
(11.3 kg)
20 lbs.
(10 kg)
20 lbs.
(10 kg)
  75 lbs.
(35 kg)
Static Frictional Drag Torque 5 oz.-in.
(.04 NM)
1-5 oz.-in.
(.01-.03 NM)
1-3 oz.-in.
(.01-.02 NM)
1-3 oz-in.
(.01-.02 NM)
5 oz.-in. max.
(.04 NM max.)
1-3 oz.-in.
(.01-.02 NM)
1-3 oz.-in.
(.01-.02 NM)
  Free
Wheeling
7/16" (11mm) Dynamic Load   15 lbs.
(7 kg)
15 lbs.
(7 kg)
  75 lbs.
(34 kg)
30 lbs.
(13 kg)
    90 lbs.
(40 kg)
Static Frictional Drag Torque   2-6 oz.-in.
(.015-.04 NM)
2-5 oz.-in.
(.015-.03 NM)
  9 oz-in. max
(.06 NM max)
1-3 oz.-in.
(.01-.02 NM)
    Free
Wheeling
1/2" (13mm) Dynamic Load   25 lbs.
(11 kg)
25 lbs.
(11 kg)
  75 lbs.
(34 kg)
100 lbs.
(45 kg)
  150 lbs.
(68 kg)
150 lbs.
(68 kg)
Static Frictional Drag Torque   3-7 oz.-in.
(.02-.05 NM)
2-5 oz.-in.
(.014-.03 NM)
  9 oz-in. max
(.06 NM max)
2-6 oz.-in.
(.014-.04 NM)
  2-6 oz.-in.
(.014-.04 NM)
Free
Wheeling
5/8" (16mm) Dynamic Load   35 lbs.
(16 kg)
35 lbs.
(16 kg)
    125 lbs.
(56 kg)
  250 lbs.
(113 kg)
225 lbs.
(100 kg)
Static Frictional Drag Torque   4-8 oz.-in.
(.03-.05 NM)
3-7 oz.-in.
(.02-.05 NM)
    2-6 oz.-in.
(.014-.04 NM)
  2-6 oz.-in.
(.014-.04 NM)
Free
Wheeling
3/4" (19mm) Dynamic Load     55 lbs.
(25 kg)
    150 lbs.
(68 kg)
  350 lbs.
(159 kg)
350 lbs.
(160 kg)
Static Frictional Drag Torque     5-9 oz.-in.
(.03-.063 NM)
    3-7 oz.-in.
(.02-.05 NM)
  3-7 oz.-in.
(.02-.05 NM)
Free
Wheeling
7/8" (22mm) Dynamic Load     55 lbs.
(25 kg)
    200 lbs.
(90 kg)
  350 lbs.
(159 kg)
500 lbs.
(227 kg)
Static Frictional Drag Torque     5-9 oz.-in.
(.03-.063 NM)
    4-8 oz.-in.
(.03-.06 NM)
  3-7 oz.-in.
(.02-.05 NM)
Free
Wheeling
15/16" (24mm) Dynamic Load     55 lbs.
(25 kg)
    200 lbs.
(90 kg)
    500 lbs.
(227 kg)
Static Frictional Drag Torque     5-9 oz.-in.
(.03-.063 NM)
    4-8 oz.-in.
(.03-.06 NM)
    Free
Wheeling