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ISO 14581 Phillips Recessed Countersunk Head Screws


ISO 14581 Phillips Recessed Countersunk Head Screws

Head Features

Countersunk head with plum blossom notch

Rod Features

Full thread

Core Purpose

For connections that require countersunk design to maintain a flat surface and strong locking force, especially suitable for connections on wood, plastic and metal surfaces, and can withstand high loads.

Advantages and Features

Countersunk head design ensures that the surface is flat and not protruding after installation; the hexagonal slot makes it easier to prevent slipping when installing the screw, improving installation efficiency; it has a strong locking force.

Typical Uses

Commonly used for fixing wood, furniture assembly, electronic equipment, building installation and places where flat surfaces are required, such as doors, windows, walls, etc.

Key Indicators for Selection

Screw length, diameter, countersunk angle, thread size

Industry-Specific Requirements

Furniture industry: requires beauty, flat surface without protrusions.

Electronic equipment: suitable for connections with high requirements for surface flatness.

Product specification:

Mon #0 #1 #2 #3 #4 #5 #6 #8 #10 #12 1/4 5/16 3/8 7/16 1/2
P 80 64|72 56|64 48|56 40|48 40|44 32|40 32|36 24|32 24|28|32 20|28|32 18|24|32 16|24|32 14|20|28 13|20|28
dk max 0.112 0.137 0.162 0.187 0.212 0.237 0.262 0.312 0.362 0.412 0.477 0.597 0.717 0.76 0.815
dk min 0.096 0.12 0.144 0.167 0.191 0.215 0.238 0.285 0.333 0.38 0.442 0.556 0.67 0.715 0.765
k 0.035 0.043 0.051 0.059 0.067 0.075 0.083 0.1 0.116 0.132 0.153 0.191 0.23 0.223 0.223
n max 0.023 0.026 0.031 0.035 0.039 0.043 0.048 0.054 0.06 0.067 0.075 0.084 0.094 0.094 0.106
n min 0.016 0.019 0.023 0.027 0.031 0.035 0.039 0.045 0.05 0.056 0.064 0.072 0.081 0.081 0.091
t max 0.015 0.019 0.023 0.027 0.03 0.034 0.038 0.045 0.053 0.06 0.07 0.088 0.106 0.103 0.103
t min 0.01 0.012 0.015 0.017 0.02 0.022 0.024 0.029 0.034 0.039 0.046 0.058 0.07 0.066 0.065
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