def ldu(value):
    return value * 0.4


def stud(value):
    return value * ldu(12)


def pin(value):
    return value * ldu(12)


def pin_shim(value):
    return value * ldu(16)


def pin_shim_height(value):
    return value * ldu(3)


def pin_clip(value):
    return value * ldu(14)


def stud_height(value):
    return value * ldu(4.5)


def studs(value):
    return value * ldu(20)


def plate(value):
    return value * ldu(8)


def brick(value):
    return value * ldu(24)