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DIN 7971

Tapping Screws, Slotted Pan Head

Equivalent Standard: ISO 1481 | UNI 6591

Metric DIN 7971 Pan Head Slot Drive Self Tapping Sheet Metal Screws are thread forming screws that tap their own threads in the substrate into which they are driven – usually thin metal. The slot drive accepts a single blade slot screwdriver ideal for simple manual applications. DIN 7971 Pan Head Slot Drive Self Tapping Sheet Metal Screws are to be used with pre-drilled, punched or nested pilot holes in sheet metal or other solid materials. BRK Industries offers the following sizes for immediate delivery from stock: Diameters ranging from M2.2 to M6.3 up to 70mm in length and available in A2 stainless steel. View available parts by clicking on the following link: Pan Head Slot Drive Self Tapping Sheet Metal Screws DIN 7971.

  • DIN 7971 Tapping Screws, Slotted Pan Head
  • Material Grade: 
  • Finish: Self, Black, Bright Zinc, Hot Dip Galvanized
  • Thread: METRIC

Technical Specification for DIN 7971 Tapping Screws, Slotted Pan Head

ThreadST 2,2ST 2,9ST 3,5ST 4,2ST 4,8ST 5,5ST 6,3ST 8ST 9,5
P0,81,11,31,41,61,81,82,12,1
amax.0,81,11,31,41,61,81,82,12,1
damax.2,83,54,14,95,56,37,19,210,7
dkmax.45,6789,511121620
min.3,75,36,67,69,110,611,615,619,5
kmax.1,31,82,12,433,23,64,86
min.1,11,61,92,22,72,93,34,55,7
nnominal0,50,811,21,21,61,622,5
max.0,711,21,511,511,911,912,312,81
min.0,560,861,061,261,261,661,662,062,56
rmin.0,10,10,10,20,20,250,250,40,4
rfapprox.0,60,811,21,51,61,82,43
tmin.0,50,70,811,21,31,41,92,4
wmin.0,50,70,80,91,21,31,41,92,4
yType C22,63,23,74,3567,58
Type F1,62,12,52,83,23,63,64,24,2
lTrade sizes
NominalType CType F
min.max.min.max.         
4,53,75,33,74,5+        
6,55,77,35,76,5+++      
9,58,710,38,79,5+++++    
1312,213,812,213+++++++  
1615,216,815,216+++++++++
1918,219,818,219 ++++++++
2221,222,820,722  +++++++
2524,225,823,725   ++++++
3230,733,330,732    +++++
3836,739,336,738      +++
4543,746,343,545       ++
5048,751,348,550       ++
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