cold heading service
Cold heading Service

DIN968 Cross Recessed Pan Head Tapping Screws with Collar

DIN 968 pan head self-tapping screws with collar feature a rounded head, a cross-shaped drive, and a wider base beneath the head. The wider base provides more contact with the surface being fastened, while the self-tapping thread allows the screw to form threads in suitable materials. These screws are commonly used for fastening sheet metal, electrical enclosures, equipment panels, and other components where a wider bearing surface is needed.

We use specialized cold heading and thread rolling equipment to produce screws with consistent head shapes and thread dimensions. Heat treatment is carefully controlled to help the screws achieve the required strength and hardness. Each production stage is subject to quality checks to ensure that the finished screws meet the agreed specifications.

DIN 968 Pan Head Self Tapping Screws with Collar
DIN 968 Pan Head Self Tapping Screws with Collar Stainless Steel

Specification:

ItemSpecification
StandardDIN968
Product TypePan Head Tapping Screw with Collar
Thread TypeTapping Thread
Size RangeST2.2-ST6.3
Point TypeType C,Type F,Type R
Thread StandardISO 1478
MaterialCarbon Steel, Stainless Steel
Steel PropertyISO 2702
Stainless Steel PropertyISO 3506-4
Surface TreatmentBlack Oxidation,Zinc Plated,Bright Finish
InspectionDimensions,Thread,Hardness,Coating

Dimension Chart:

DIN 968 Cross Recessed Pan Head Tapping Screws with Collar feature a pan head design, cross recess drive, and an integrated collar under the head. The dimension chart mainly covers important parameters such as thread size, pitch, head diameter, head height, collar diameter, and screw length, helping customers select the suitable size for different fastening applications. The collar increases the bearing surface under the head, providing improved load distribution and more stable fastening performance.

Drawing of DIN968 Cross Recessed Pan Head Tapping Screws with Collar

Thread SizeST2.9ST3.5ST4.2ST4.8(ST5.5)ST6.3
PPitch1.11.31.41.61.81.8
amax1.11.31.41.61.81.8
dkmax=nominal size7.591011.51314.5
min6.928.429.4210.812.313.8
kmax=nominal size2.352.63.053.553.84.55
min2.12.352.753.253.54.25
cmax0.80.91.11.351.61.8
min0.60.70.91.051.21.4
rmin0.10.10.20.20.250.25
R≈3.84.65.86.67.88.2
Socket No.122233
M1From HRef.34.24.656.57.1
Penetration depthFrom Hmin1.351.41.82.262.493
max1.82.032.462.873.153.66
M2From ZRef.2.93.94.34.76.26.7
Penetration depthFrom Zmin1.581.471.882.282.513.02
max1.831.932.342.742.973.48
yRef.Type C2.63.23.74.356
Type F2.12.52.83.23.63.6
Type R/2.73.23.64.35

Mechanical Property:

Steel DIN 968 Self-Tapping Screws – ISO 2702

During installation, DIN 968 steel self-tapping screws must withstand tightening torque while forming threads in the base material. Sufficient strength and hardness help prevent the screw from twisting off or being damaged during installation. ISO 2702 specifies the mechanical and physical requirements for heat-treated steel tapping screws.

Stainless Steel DIN 968 Self-Tapping Screws – ISO 3506-4

DIN 968 stainless steel self-tapping screws need sufficient torsional strength to withstand installation forces while engaging with the base material. Their mechanical properties depend on the stainless steel grade and material condition. ISO 3506-4 specifies the mechanical and physical requirements for corrosion-resistant stainless steel tapping screws.