// screwShapes1


module flatHeadM3(length) {
    headMax = 6.0;
    headMin = 3.2;
    headHeight = 2.01;
    cylinder(d1 = 6.0, d2 = 3.2, h = headHeight + 0.01);
    translate([0, 0, headHeight]) cylinder(d = headMin, h = length - headHeight);
}

module flatHeadM4(length) {
    headMax = 7.0;
    headMin = 4.2;
    headHeight = 3.0;
    cylinder(d1 = headMax, d2 = headMin, h = headHeight + 0.01);
    translate([0, 0, headHeight]) cylinder(d = headMin, h = length - headHeight);
}

module hexHeadM4(length) {
    headDiam = 6.3;
    headHeight = 4.2;
    cylinder(d = headDiam, h = headHeight);
    translate([0, 0, headHeight]) cylinder(d = 4.4, h = length);
}

module hexHeadM6(length) {
    headDiam = 10.0;
    headHeight = 6.0;
    cylinder(d = headDiam, h = headHeight);
    translate([0, 0, headHeight]) cylinder(d = 6.4, h = length);    
}

module nutM6() {
    cylinder(d = 11.5, h = 5.0, $fn = 6);
}